57452628 has 12 divisors (see below), whose sum is σ = 134056160. Its totient is φ = 19150872.

The previous prime is 57452627. The next prime is 57452651. The reversal of 57452628 is 82625475.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57452623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393848 + ... + 2393871.

Almost surely, 2^57452628 is an apocalyptic number.

It is an amenable number.

57452628 is an abundant number, since it is smaller than the sum of its proper divisors (76603532).

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

57452628 is a wasteful number, since it uses less digits than its factorization.

57452628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787726 (or 4787724 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 57452628 is about 7579.7511832513. The cubic root of 57452628 is about 385.8661065675.

The spelling of 57452628 in words is "fifty-seven million, four hundred fifty-two thousand, six hundred twenty-eight".