56561502 has 8 divisors (see below), whose sum is σ = 113123016. Its totient is φ = 18853832.

The previous prime is 56561459. The next prime is 56561507. The reversal of 56561502 is 20516565.

It is a sphenic number, since it is the product of 3 distinct primes.

56561502 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 56561502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56561507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713453 + ... + 4713464.

It is an arithmetic number, because the mean of its divisors is an integer number (14140377).

Almost surely, 2^56561502 is an apocalyptic number.

56561502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56561502 is a wasteful number, since it uses less digits than its factorization.

56561502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426922.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 56561502 is about 7520.7381286680. The cubic root of 56561502 is about 383.8606943697.

The spelling of 56561502 in words is "fifty-six million, five hundred sixty-one thousand, five hundred two".