56640610 has 32 divisors (see below), whose sum is σ = 110315520. Its totient is φ = 20814528.

The previous prime is 56640607. The next prime is 56640613. The reversal of 56640610 is 1604665.

56640610 = 439² + 440² + ... + 633².

It is an interprime number because it is at equal distance from previous prime (56640607) and next prime (56640613).

It is not an unprimeable number, because it can be changed into a prime (56640613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30159 + ... + 31981.

It is an arithmetic number, because the mean of its divisors is an integer number (3447360).

Almost surely, 2^56640610 is an apocalyptic number.

56640610 is a deficient number, since it is larger than the sum of its proper divisors (53674910).

56640610 is a wasteful number, since it uses less digits than its factorization.

56640610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56640610 is about 7525.9956151994. The cubic root of 56640610 is about 384.0395693093.

The spelling of 56640610 in words is "fifty-six million, six hundred forty thousand, six hundred ten".