57502250 has 48 divisors (see below), whose sum is σ = 116647128. Its totient is φ = 21216000.

The previous prime is 57502243. The next prime is 57502253. The reversal of 57502250 is 5220575.

It can be written as a sum of positive squares in 12 ways, for example, as 28654609 + 28847641 = 5353^2 + 5371^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57502253) 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, 41570 + ... + 42930.

Almost surely, 2^57502250 is an apocalyptic number.

57502250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57502250 is an abundant number, since it is smaller than the sum of its proper divisors (59144878).

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

57502250 is a wasteful number, since it uses less digits than its factorization.

57502250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 57502250 is about 7583.0238032067. The cubic root of 57502250 is about 385.9771658215.

It can be divided in two parts, 5750 and 2250, that added together give a cube (8000 = 20³).

The spelling of 57502250 in words is "fifty-seven million, five hundred two thousand, two hundred fifty".