56613787 has 16 divisors (see below), whose sum is σ = 62530560. Its totient is φ = 51017472.

The previous prime is 56613769. The next prime is 56613827. The reversal of 56613787 is 78731665.

It is a cyclic number.

It is not a de Polignac number, because 56613787 - 2⁷ = 56613659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56613707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154078 + ... + 154444.

It is an arithmetic number, because the mean of its divisors is an integer number (3908160).

Almost surely, 2^56613787 is an apocalyptic number.

56613787 is a deficient number, since it is larger than the sum of its proper divisors (5916773).

56613787 is a wasteful number, since it uses less digits than its factorization.

56613787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 211680, while the sum is 43.

The square root of 56613787 is about 7524.2133808126. The cubic root of 56613787 is about 383.9789371947.

The spelling of 56613787 in words is "fifty-six million, six hundred thirteen thousand, seven hundred eighty-seven".