55501156388 has 48 divisors (see below), whose sum is σ = 103688315136. Its totient is φ = 25938232320.

The previous prime is 55501156387. The next prime is 55501156397. The reversal of 55501156388 is 88365110555.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55501156387) 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, 700520 + ... + 775712.

It is an arithmetic number, because the mean of its divisors is an integer number (2160173232).

Almost surely, 2^55501156388 is an apocalyptic number.

It is an amenable number.

55501156388 is a deficient number, since it is larger than the sum of its proper divisors (48187158748).

55501156388 is a wasteful number, since it uses less digits than its factorization.

55501156388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75404 (or 75402 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 47.

The spelling of 55501156388 in words is "fifty-five billion, five hundred one million, one hundred fifty-six thousand, three hundred eighty-eight".