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55265256 = 23321574889
BaseRepresentation
bin1101001011010…
…0011111101000
310211222202200100
43102310133220
5103121442011
65252305400
71240514124
oct322643750
9124882610
1055265256
1129217672
1216612260
13b5acb47
1474a8584
154cb9d56
hex34b47e8

55265256 has 48 divisors (see below), whose sum is σ = 150660900. Its totient is φ = 18300672.

The previous prime is 55265227. The next prime is 55265261. The reversal of 55265256 is 65256255.

55265256 is a `hidden beast` number, since 552 + 6 + 52 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55264356 + 900 = 7434^2 + 30^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55265256.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8860 + ... + 13748.

Almost surely, 255265256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55265256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75330450).

55265256 is an abundant number, since it is smaller than the sum of its proper divisors (95395644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55265256 is a wasteful number, since it uses less digits than its factorization.

55265256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058 (or 5051 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 55265256 is about 7434.0605324412. The cubic root of 55265256 is about 380.9056331069.

Subtracting 55265256 from its reverse (65256255), we obtain a palindrome (9990999).

The spelling of 55265256 in words is "fifty-five million, two hundred sixty-five thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 157 314 471 628 942 1256 1413 1884 2826 3768 4889 5652 9778 11304 14667 19556 29334 39112 44001 58668 88002 117336 176004 352008 767573 1535146 2302719 3070292 4605438 6140584 6908157 9210876 13816314 18421752 27632628 55265256