57504728 has 16 divisors (see below), whose sum is σ = 109299480. Its totient is φ = 28358208.

The previous prime is 57504719. The next prime is 57504737. The reversal of 57504728 is 82740575.

It is an interprime number because it is at equal distance from previous prime (57504719) and next prime (57504737).

It is a junction number, because it is equal to n+sod(n) for n = 57504691 and 57504700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48650 + ... + 49817.

Almost surely, 2^57504728 is an apocalyptic number.

It is an amenable number.

57504728 is a deficient number, since it is larger than the sum of its proper divisors (51794752).

57504728 is a wasteful number, since it uses less digits than its factorization.

57504728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98546 (or 98542 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 57504728 is about 7583.1871927310. The cubic root of 57504728 is about 385.9827101708.

The spelling of 57504728 in words is "fifty-seven million, five hundred four thousand, seven hundred twenty-eight".