55101110520 has 32 divisors (see below), whose sum is σ = 165303331920. Its totient is φ = 14693629440.

The previous prime is 55101110431. The next prime is 55101110543. The reversal of 55101110520 is 2501110155.

It is a super-2 number, since 2×55101110520² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 229587841 + ... + 229588080.

Almost surely, 2^55101110520 is an apocalyptic number.

It is an amenable number.

55101110520 is an abundant number, since it is smaller than the sum of its proper divisors (110202221400).

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

55101110520 is a wasteful number, since it uses less digits than its factorization.

55101110520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459175935 (or 459175931 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 21.

Adding to 55101110520 its reverse (2501110155), we get a palindrome (57602220675).

The spelling of 55101110520 in words is "fifty-five billion, one hundred one million, one hundred ten thousand, five hundred twenty".