56690039 has 16 divisors (see below), whose sum is σ = 66612480. Its totient is φ = 47234880.

The previous prime is 56690033. The next prime is 56690047. The reversal of 56690039 is 93009665.

56690039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-56690039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56689984 and 56690011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56690033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99347 + ... + 99915.

It is an arithmetic number, because the mean of its divisors is an integer number (4163280).

Almost surely, 2^56690039 is an apocalyptic number.

56690039 is a deficient number, since it is larger than the sum of its proper divisors (9922441).

56690039 is a wasteful number, since it uses less digits than its factorization.

56690039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 56690039 is about 7529.2787835224. The cubic root of 56690039 is about 384.1512510904.

The spelling of 56690039 in words is "fifty-six million, six hundred ninety thousand, thirty-nine".