57509690 has 32 divisors (see below), whose sum is σ = 118589184. Its totient is φ = 19670400.

The previous prime is 57509677. The next prime is 57509707. The reversal of 57509690 is 9690575.

It is a super-2 number, since 2×57509690² = 6614728887792200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41387 + ... + 42753.

It is an arithmetic number, because the mean of its divisors is an integer number (3705912).

Almost surely, 2^57509690 is an apocalyptic number.

57509690 is an abundant number, since it is smaller than the sum of its proper divisors (61079494).

57509690 is a wasteful number, since it uses less digits than its factorization.

57509690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 57509690 is about 7583.5143568137. The cubic root of 57509690 is about 385.9938118152.

The spelling of 57509690 in words is "fifty-seven million, five hundred nine thousand, six hundred ninety".