56681250 has 48 divisors (see below), whose sum is σ = 141740928. Its totient is φ = 15110000.

The previous prime is 56681203. The next prime is 56681257. The reversal of 56681250 is 5218665.

It is not an unprimeable number, because it can be changed into a prime (56681257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17239 + ... + 20261.

It is an arithmetic number, because the mean of its divisors is an integer number (2952936).

Almost surely, 2^56681250 is an apocalyptic number.

56681250 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 56681250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70870464).

56681250 is an abundant number, since it is smaller than the sum of its proper divisors (85059678).

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

56681250 is an equidigital number, since it uses as much as digits as its factorization.

56681250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 56681250 is about 7528.6951060592. The cubic root of 56681250 is about 384.1313976329.

The spelling of 56681250 in words is "fifty-six million, six hundred eighty-one thousand, two hundred fifty".