56261691802 has 16 divisors (see below), whose sum is σ = 87308297640. Its totient is φ = 27159052032.

The previous prime is 56261691757. The next prime is 56261691821. The reversal of 56261691802 is 20819616265.

56261691802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 52225503841 + 4036187961 = 228529^2 + 63531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531198 + ... + 1567510.

Almost surely, 2^56261691802 is an apocalyptic number.

56261691802 is a deficient number, since it is larger than the sum of its proper divisors (31046605838).

56261691802 is a wasteful number, since it uses less digits than its factorization.

56261691802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63057.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 56261691802 in words is "fifty-six billion, two hundred sixty-one million, six hundred ninety-one thousand, eight hundred two".