55621633132 has 24 divisors (see below), whose sum is σ = 105243041232. Its totient is φ = 25569240000.

The previous prime is 55621633051. The next prime is 55621633157. The reversal of 55621633132 is 23133612655.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55621633091 and 55621633100.

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 7 ways as a sum of consecutive naturals, for example, 2117719 + ... + 2143822.

It is an arithmetic number, because the mean of its divisors is an integer number (4385126718).

Almost surely, 2^55621633132 is an apocalyptic number.

55621633132 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55621633132 is a deficient number, since it is larger than the sum of its proper divisors (49621408100).

55621633132 is a wasteful number, since it uses less digits than its factorization.

55621633132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261809 (or 4261807 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The spelling of 55621633132 in words is "fifty-five billion, six hundred twenty-one million, six hundred thirty-three thousand, one hundred thirty-two".