57401656 has 32 divisors (see below), whose sum is σ = 122729040. Its totient is φ = 24933888.

The previous prime is 57401653. The next prime is 57401657. The reversal of 57401656 is 65610475.

It is a happy number.

It is a super-2 number, since 2×57401656² = 6589900223084672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57401651) 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, 14466 + ... + 18001.

Almost surely, 2^57401656 is an apocalyptic number.

It is an amenable number.

57401656 is an abundant number, since it is smaller than the sum of its proper divisors (65327384).

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

57401656 is a wasteful number, since it uses less digits than its factorization.

57401656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32503 (or 32499 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 57401656 is about 7576.3880576433. The cubic root of 57401656 is about 385.7519592701.

It can be divided in two parts, 5740 and 1656, that added together give a square (7396 = 86²).

The spelling of 57401656 in words is "fifty-seven million, four hundred one thousand, six hundred fifty-six".