57225750 has 64 divisors (see below), whose sum is σ = 146397888. Its totient is φ = 14880000.

The previous prime is 57225737. The next prime is 57225767. The reversal of 57225750 is 5752275.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29820 + ... + 31680.

It is an arithmetic number, because the mean of its divisors is an integer number (2287467).

Almost surely, 2^57225750 is an apocalyptic number.

57225750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57225750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73198944).

57225750 is an abundant number, since it is smaller than the sum of its proper divisors (89172138).

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

57225750 is a wasteful number, since it uses less digits than its factorization.

57225750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 57225750 is about 7564.7703203732. The cubic root of 57225750 is about 385.3575135254.

It can be divided in two parts, 57225 and 750, that added together give a palindrome (57975).

The spelling of 57225750 in words is "fifty-seven million, two hundred twenty-five thousand, seven hundred fifty".