57276456 has 32 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 18685568.

The previous prime is 57276419. The next prime is 57276493. The reversal of 57276456 is 65467275.

57276456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57276419) and next prime (57276493).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24261 + ... + 26516.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 2^57276456 is an apocalyptic number.

57276456 is the 4787-th centered pentagonal number.

It is an amenable number.

57276456 is an abundant number, since it is smaller than the sum of its proper divisors (88964184).

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

57276456 is a wasteful number, since it uses less digits than its factorization.

57276456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50833 (or 50829 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 57276456 is about 7568.1210349729. The cubic root of 57276456 is about 385.4712977902.

It can be divided in two parts, 572 and 76456, that added together give a triangular number (77028 = T₃₉₂).

The spelling of 57276456 in words is "fifty-seven million, two hundred seventy-six thousand, four hundred fifty-six".