55506056100 has 72 divisors (see below), whose sum is σ = 175197307488. Its totient is φ = 13456012800.

The previous prime is 55506056093. The next prime is 55506056107. The reversal of 55506056100 is 165060555.

It is an interprime number because it is at equal distance from previous prime (55506056093) and next prime (55506056107).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (55506056107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8406709 + ... + 8413308.

Almost surely, 2^55506056100 is an apocalyptic number.

55506056100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55506056100 is an abundant number, since it is smaller than the sum of its proper divisors (119691251388).

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

55506056100 is a wasteful number, since it uses less digits than its factorization.

55506056100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16820045 (or 16820038 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 55506056100 in words is "fifty-five billion, five hundred six million, fifty-six thousand, one hundred".