55509600550 has 24 divisors (see below), whose sum is σ = 103573589616. Its totient is φ = 22133790240.

The previous prime is 55509600527. The next prime is 55509600617. The reversal of 55509600550 is 5500690555.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1735242 + ... + 1766941.

It is an arithmetic number, because the mean of its divisors is an integer number (4315566234).

Almost surely, 2^55509600550 is an apocalyptic number.

55509600550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55509600550 is a deficient number, since it is larger than the sum of its proper divisors (48063989066).

55509600550 is a wasteful number, since it uses less digits than its factorization.

55509600550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502512 (or 3502507 counting only the distinct ones).

The product of its (nonzero) digits is 168750, while the sum is 40.

The spelling of 55509600550 in words is "fifty-five billion, five hundred nine million, six hundred thousand, five hundred fifty".