56690500 has 24 divisors (see below), whose sum is σ = 123813144. Its totient is φ = 22676000.

The previous prime is 56690497. The next prime is 56690503. The reversal of 56690500 is 509665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56690497) and next prime (56690503).

It can be written as a sum of positive squares in 4 ways, for example, as 350464 + 56340036 = 592^2 + 7506^2 .

It is not an unprimeable number, because it can be changed into a prime (56690503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56191 + ... + 57190.

It is an arithmetic number, because the mean of its divisors is an integer number (5158881).

Almost surely, 2^56690500 is an apocalyptic number.

56690500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56690500 is an abundant number, since it is smaller than the sum of its proper divisors (67122644).

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

56690500 is a wasteful number, since it uses less digits than its factorization.

56690500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113400 (or 113388 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 56690500 is about 7529.3093972821. The cubic root of 56690500 is about 384.1522923859.

The spelling of 56690500 in words is "fifty-six million, six hundred ninety thousand, five hundred".