55001615564 has 48 divisors (see below), whose sum is σ = 110923895040. Its totient is φ = 23375234880.

The previous prime is 55001615519. The next prime is 55001615611. The reversal of 55001615564 is 46551610055.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3522254 + ... + 3537834.

It is an arithmetic number, because the mean of its divisors is an integer number (2310914480).

Almost surely, 2^55001615564 is an apocalyptic number.

It is an amenable number.

55001615564 is an abundant number, since it is smaller than the sum of its proper divisors (55922279476).

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

55001615564 is a wasteful number, since it uses less digits than its factorization.

55001615564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16638 (or 16636 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 55001615564 in words is "fifty-five billion, one million, six hundred fifteen thousand, five hundred sixty-four".