56357250 has 64 divisors (see below), whose sum is σ = 141837696. Its totient is φ = 14904000.

The previous prime is 56357239. The next prime is 56357263. The reversal of 56357250 is 5275365.

It is a super-2 number, since 2×56357250² = 6352279255125000, which contains 22 as substring.

It is a Curzon 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, 122020 + ... + 122480.

It is an arithmetic number, because the mean of its divisors is an integer number (2216214).

Almost surely, 2^56357250 is an apocalyptic number.

56357250 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 56357250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70918848).

56357250 is an abundant number, since it is smaller than the sum of its proper divisors (85480446).

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

56357250 is a wasteful number, since it uses less digits than its factorization.

56357250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 56357250 is about 7507.1465950786. The cubic root of 56357250 is about 383.3980777010.

The spelling of 56357250 in words is "fifty-six million, three hundred fifty-seven thousand, two hundred fifty".