55500000550 has 48 divisors (see below), whose sum is σ = 106139081664. Its totient is φ = 21578400000.

The previous prime is 55500000533. The next prime is 55500000583. The reversal of 55500000550 is 5500000555.

55500000550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55500000550² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505600 + ... + 605500.

It is an arithmetic number, because the mean of its divisors is an integer number (2211230868).

Almost surely, 2^55500000550 is an apocalyptic number.

55500000550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55500000550 is a deficient number, since it is larger than the sum of its proper divisors (50639081114).

55500000550 is a wasteful number, since it uses less digits than its factorization.

55500000550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100225 (or 100220 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 55500000550 in words is "fifty-five billion, five hundred million, five hundred fifty", and thus it is an aban number.