57451232 has 24 divisors (see below), whose sum is σ = 116166456. Its totient is φ = 27948672.

The previous prime is 57451213. The next prime is 57451241. The reversal of 57451232 is 23215475.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 57451195 and 57451204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23078 + ... + 25445.

It is an arithmetic number, because the mean of its divisors is an integer number (4840269).

Almost surely, 2^57451232 is an apocalyptic number.

It is an amenable number.

57451232 is an abundant number, since it is smaller than the sum of its proper divisors (58715224).

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

57451232 is a wasteful number, since it uses less digits than its factorization.

57451232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48570 (or 48562 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 57451232 is about 7579.6590952364. The cubic root of 57451232 is about 385.8629812481.

The spelling of 57451232 in words is "fifty-seven million, four hundred fifty-one thousand, two hundred thirty-two".