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55369265 = 572297793
BaseRepresentation
bin1101001100110…
…1111000110001
310212012001100112
43103031320301
5103133304030
65254431105
71241426300
oct323157061
9125161315
1055369265
1129288826
1216662495
13b6182a3
1474d4437
154cdaa95
hex34cde31

55369265 has 24 divisors (see below), whose sum is σ = 79966440. Its totient is φ = 36653568.

The previous prime is 55369261. The next prime is 55369291. The reversal of 55369265 is 56296355.

It can be written as a sum of positive squares in 4 ways, for example, as 20133169 + 35236096 = 4487^2 + 5936^2 .

It is not a de Polignac number, because 55369265 - 22 = 55369261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55369261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3209 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (3331935).

Almost surely, 255369265 is an apocalyptic number.

It is an amenable number.

55369265 is a deficient number, since it is larger than the sum of its proper divisors (24597175).

55369265 is a wasteful number, since it uses less digits than its factorization.

55369265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841 (or 7834 counting only the distinct ones).

The product of its digits is 243000, while the sum is 41.

The square root of 55369265 is about 7441.0526809048. The cubic root of 55369265 is about 381.1444376737.

The spelling of 55369265 in words is "fifty-five million, three hundred sixty-nine thousand, two hundred sixty-five".

Divisors: 1 5 7 29 35 49 145 203 245 1015 1421 7105 7793 38965 54551 225997 272755 381857 1129985 1581979 1909285 7909895 11073853 55369265