56566250 has 60 divisors (see below), whose sum is σ = 116151882. Its totient is φ = 20532000.

The previous prime is 56566247. The next prime is 56566253. The reversal of 56566250 is 5266565.

It is an interprime number because it is at equal distance from previous prime (56566247) and next prime (56566253).

It can be written as a sum of positive squares in 5 ways, for example, as 421201 + 56145049 = 649^2 + 7493^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56566250.

It is not an unprimeable number, because it can be changed into a prime (56566253) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 958721 + ... + 958779.

Almost surely, 2^56566250 is an apocalyptic number.

56566250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56566250 is an abundant number, since it is smaller than the sum of its proper divisors (59585632).

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

56566250 is an equidigital number, since it uses as much as digits as its factorization.

56566250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 56566250 is about 7521.0537825494. The cubic root of 56566250 is about 383.8714350061.

The spelling of 56566250 in words is "fifty-six million, five hundred sixty-six thousand, two hundred fifty".