56611240 has 32 divisors (see below), whose sum is σ = 145572480. Its totient is φ = 19409472.

The previous prime is 56611231. The next prime is 56611249. The reversal of 56611240 is 4211665.

It is an interprime number because it is at equal distance from previous prime (56611231) and next prime (56611249).

It is not an unprimeable number, because it can be changed into a prime (56611249) 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, 100812 + ... + 101371.

It is an arithmetic number, because the mean of its divisors is an integer number (4549140).

Almost surely, 2^56611240 is an apocalyptic number.

It is an amenable number.

56611240 is an abundant number, since it is smaller than the sum of its proper divisors (88961240).

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

56611240 is a wasteful number, since it uses less digits than its factorization.

56611240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202201 (or 202197 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 56611240 is about 7524.0441253358. The cubic root of 56611240 is about 383.9731788269.

The spelling of 56611240 in words is "fifty-six million, six hundred eleven thousand, two hundred forty".