55527551538 has 64 divisors (see below), whose sum is σ = 113114109312. Its totient is φ = 18169804800.

The previous prime is 55527551507. The next prime is 55527551581. The reversal of 55527551538 is 83515572555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70555581 + ... + 70556367.

It is an arithmetic number, because the mean of its divisors is an integer number (1767407958).

Almost surely, 2^55527551538 is an apocalyptic number.

55527551538 is an abundant number, since it is smaller than the sum of its proper divisors (57586557774).

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

55527551538 is a wasteful number, since it uses less digits than its factorization.

55527551538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its digits is 5250000, while the sum is 51.

The spelling of 55527551538 in words is "fifty-five billion, five hundred twenty-seven million, five hundred fifty-one thousand, five hundred thirty-eight".