57432656 has 40 divisors (see below), whose sum is σ = 116778240. Its totient is φ = 27310976.

The previous prime is 57432653. The next prime is 57432671. The reversal of 57432656 is 65623475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57432653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87626 + ... + 88278.

It is an arithmetic number, because the mean of its divisors is an integer number (2919456).

Almost surely, 2^57432656 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 57432656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58389120).

57432656 is an abundant number, since it is smaller than the sum of its proper divisors (59345584).

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

57432656 is a wasteful number, since it uses less digits than its factorization.

57432656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 917 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 57432656 is about 7578.4336112418. The cubic root of 57432656 is about 385.8213890828.

The spelling of 57432656 in words is "fifty-seven million, four hundred thirty-two thousand, six hundred fifty-six".