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55256459 = 167330877
BaseRepresentation
bin1101001011001…
…0010110001011
310211222022121112
43102302112023
5103121201314
65252200535
71240446356
oct322622613
9124868545
1055256459
1129210aa5
121660914b
13b5a8b3b
1474a529d
154cb743e
hex34b258b

55256459 has 4 divisors (see below), whose sum is σ = 55587504. Its totient is φ = 54925416.

The previous prime is 55256449. The next prime is 55256473. The reversal of 55256459 is 95465255.

55256459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95465255 = 519093051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55256459 is a prime.

It is a super-2 number, since 2×552564592 = 6106552522437362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55256449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165272 + ... + 165605.

It is an arithmetic number, because the mean of its divisors is an integer number (13896876).

Almost surely, 255256459 is an apocalyptic number.

55256459 is a deficient number, since it is larger than the sum of its proper divisors (331045).

55256459 is a wasteful number, since it uses less digits than its factorization.

55256459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331044.

The product of its digits is 270000, while the sum is 41.

The square root of 55256459 is about 7433.4688403194. The cubic root of 55256459 is about 380.8854214652.

The spelling of 55256459 in words is "fifty-five million, two hundred fifty-six thousand, four hundred fifty-nine".

Divisors: 1 167 330877 55256459