55311512630 has 128 divisors (see below), whose sum is σ = 117398160000. Its totient is φ = 18539642880.

The previous prime is 55311512593. The next prime is 55311512677. The reversal of 55311512630 is 3621511355.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 18139346 + ... + 18142394.

It is an arithmetic number, because the mean of its divisors is an integer number (917173125).

Almost surely, 2^55311512630 is an apocalyptic number.

55311512630 is an abundant number, since it is smaller than the sum of its proper divisors (62086647370).

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

55311512630 is a wasteful number, since it uses less digits than its factorization.

55311512630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 55311512630 in words is "fifty-five billion, three hundred eleven million, five hundred twelve thousand, six hundred thirty".