57305930 has 16 divisors (see below), whose sum is σ = 112528224. Its totient is φ = 20838480.

The previous prime is 57305917. The next prime is 57305977. The reversal of 57305930 is 3950375.

It is a super-2 number, since 2×57305930² = 6567939226329800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260372 + ... + 260591.

It is an arithmetic number, because the mean of its divisors is an integer number (7033014).

Almost surely, 2^57305930 is an apocalyptic number.

57305930 is a deficient number, since it is larger than the sum of its proper divisors (55222294).

57305930 is a wasteful number, since it uses less digits than its factorization.

57305930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520981.

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 57305930 is about 7570.0680313984. The cubic root of 57305930 is about 385.5374065869.

The spelling of 57305930 in words is "fifty-seven million, three hundred five thousand, nine hundred thirty".