56736642 has 32 divisors (see below), whose sum is σ = 116847360. Its totient is φ = 18358160.

The previous prime is 56736637. The next prime is 56736671. The reversal of 56736642 is 24663765.

56736642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56736642.

It is an unprimeable number.

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, 28417 + ... + 30347.

It is an arithmetic number, because the mean of its divisors is an integer number (3651480).

Almost surely, 2^56736642 is an apocalyptic number.

56736642 is an abundant number, since it is smaller than the sum of its proper divisors (60110718).

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

56736642 is a wasteful number, since it uses less digits than its factorization.

56736642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078.

The product of its digits is 181440, while the sum is 39.

The square root of 56736642 is about 7532.3729328811. The cubic root of 56736642 is about 384.2564882573.

The spelling of 56736642 in words is "fifty-six million, seven hundred thirty-six thousand, six hundred forty-two".