57172330 has 32 divisors (see below), whose sum is σ = 109200960. Its totient is φ = 21490560.

The previous prime is 57172307. The next prime is 57172331. The reversal of 57172330 is 3327175.

It is a super-3 number, since 3×57172330³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (57172331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23742 + ... + 26038.

It is an arithmetic number, because the mean of its divisors is an integer number (3412530).

Almost surely, 2^57172330 is an apocalyptic number.

57172330 is a deficient number, since it is larger than the sum of its proper divisors (52028630).

57172330 is a wasteful number, since it uses less digits than its factorization.

57172330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 57172330 is about 7561.2386551411. The cubic root of 57172330 is about 385.2375663147.

The spelling of 57172330 in words is "fifty-seven million, one hundred seventy-two thousand, three hundred thirty".