57503232 has 60 divisors (see below), whose sum is σ = 165971520. Its totient is φ = 19166208.

The previous prime is 57503227. The next prime is 57503269. The reversal of 57503232 is 23230575.

It is a junction number, because it is equal to n+sod(n) for n = 57503196 and 57503205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1632 + ... + 10847.

It is an arithmetic number, because the mean of its divisors is an integer number (2766192).

Almost surely, 2^57503232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57503232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82985760).

57503232 is an abundant number, since it is smaller than the sum of its proper divisors (108468288).

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

57503232 is a wasteful number, since it uses less digits than its factorization.

57503232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503 (or 12484 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 57503232 is about 7583.0885528260. The cubic root of 57503232 is about 385.9793629959.

The spelling of 57503232 in words is "fifty-seven million, five hundred three thousand, two hundred thirty-two".