57520738 has 12 divisors (see below), whose sum is σ = 94838310. Its totient is φ = 26145680.

The previous prime is 57520669. The next prime is 57520747. The reversal of 57520738 is 83702575.

It can be written as a sum of positive squares in only one way, i.e., 44582329 + 12938409 = 6677^2 + 3597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57520697 and 57520706.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118603 + ... + 119086.

Almost surely, 2^57520738 is an apocalyptic number.

57520738 is a deficient number, since it is larger than the sum of its proper divisors (37317572).

57520738 is a wasteful number, since it uses less digits than its factorization.

57520738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237713 (or 237702 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 57520738 is about 7584.2427440055. The cubic root of 57520738 is about 386.0185275723.

The spelling of 57520738 in words is "fifty-seven million, five hundred twenty thousand, seven hundred thirty-eight".