56660540 has 12 divisors (see below), whose sum is σ = 118987176. Its totient is φ = 22664208.

The previous prime is 56660497. The next prime is 56660561. The reversal of 56660540 is 4506665.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56660497 and 56660506.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1416494 + ... + 1416533.

It is an arithmetic number, because the mean of its divisors is an integer number (9915598).

Almost surely, 2^56660540 is an apocalyptic number.

It is an amenable number.

56660540 is an abundant number, since it is smaller than the sum of its proper divisors (62326636).

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

56660540 is a wasteful number, since it uses less digits than its factorization.

56660540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833036 (or 2833034 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 56660540 is about 7527.3195760510. The cubic root of 56660540 is about 384.0846077312.

The spelling of 56660540 in words is "fifty-six million, six hundred sixty thousand, five hundred forty".