57172650 has 48 divisors (see below), whose sum is σ = 142249824. Its totient is φ = 15196480.

The previous prime is 57172639. The next prime is 57172657. The reversal of 57172650 is 5627175.

It is not an unprimeable number, because it can be changed into a prime (57172657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84112 + ... + 84788.

It is an arithmetic number, because the mean of its divisors is an integer number (2963538).

Almost surely, 2^57172650 is an apocalyptic number.

57172650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57172650 is an abundant number, since it is smaller than the sum of its proper divisors (85077174).

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

57172650 is a wasteful number, since it uses less digits than its factorization.

57172650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 57172650 is about 7561.2598156656. The cubic root of 57172650 is about 385.2382850528.

The spelling of 57172650 in words is "fifty-seven million, one hundred seventy-two thousand, six hundred fifty".