55879985650 has 48 divisors (see below), whose sum is σ = 106403457600. Its totient is φ = 21822010560.

The previous prime is 55879985599. The next prime is 55879985729. The reversal of 55879985650 is 5658997855.

55879985650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5991691 + ... + 6001009.

It is an arithmetic number, because the mean of its divisors is an integer number (2216738700).

Almost surely, 2^55879985650 is an apocalyptic number.

55879985650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55879985650 is a deficient number, since it is larger than the sum of its proper divisors (50523471950).

55879985650 is a wasteful number, since it uses less digits than its factorization.

55879985650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12163 (or 12158 counting only the distinct ones).

The product of its (nonzero) digits is 136080000, while the sum is 67.

The spelling of 55879985650 in words is "fifty-five billion, eight hundred seventy-nine million, nine hundred eighty-five thousand, six hundred fifty".