57250690 has 16 divisors (see below), whose sum is σ = 117772992. Its totient is φ = 19628784.

The previous prime is 57250681. The next prime is 57250693. The reversal of 57250690 is 9605275.

It is a super-2 number, since 2×57250690² = 6555283010952200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57250693) 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, 408864 + ... + 409003.

It is an arithmetic number, because the mean of its divisors is an integer number (7360812).

Almost surely, 2^57250690 is an apocalyptic number.

57250690 is an abundant number, since it is smaller than the sum of its proper divisors (60522302).

57250690 is a wasteful number, since it uses less digits than its factorization.

57250690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817881.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 57250690 is about 7566.4185715568. The cubic root of 57250690 is about 385.4134872816.

The spelling of 57250690 in words is "fifty-seven million, two hundred fifty thousand, six hundred ninety".