57730056 has 32 divisors (see below), whose sum is σ = 151922400. Its totient is φ = 18230400.

The previous prime is 57730051. The next prime is 57730103. The reversal of 57730056 is 65003775.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 57729999 and 57730026.

It is not an unprimeable number, because it can be changed into a prime (57730051) 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, 62845 + ... + 63756.

It is an arithmetic number, because the mean of its divisors is an integer number (4747575).

Almost surely, 2^57730056 is an apocalyptic number.

It is an amenable number.

57730056 is an abundant number, since it is smaller than the sum of its proper divisors (94192344).

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

57730056 is a wasteful number, since it uses less digits than its factorization.

57730056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126629 (or 126625 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 57730056 is about 7598.0297446114. The cubic root of 57730056 is about 386.4862012928.

The spelling of 57730056 in words is "fifty-seven million, seven hundred thirty thousand, fifty-six".