57501330 has 32 divisors (see below), whose sum is σ = 141735744. Its totient is φ = 14918976.

The previous prime is 57501329. The next prime is 57501331. The reversal of 57501330 is 3310575.

It is an interprime number because it is at equal distance from previous prime (57501329) and next prime (57501331).

It is a self number, because there is not a number n which added to its sum of digits gives 57501330.

It is not an unprimeable number, because it can be changed into a prime (57501331) 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, 24792 + ... + 27011.

It is an arithmetic number, because the mean of its divisors is an integer number (4429242).

Almost surely, 2^57501330 is an apocalyptic number.

57501330 is an abundant number, since it is smaller than the sum of its proper divisors (84234414).

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

57501330 is a wasteful number, since it uses less digits than its factorization.

57501330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51850.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 57501330 is about 7582.9631411474. The cubic root of 57501330 is about 385.9751073462.

The spelling of 57501330 in words is "fifty-seven million, five hundred one thousand, three hundred thirty".