55125415064550 has 48 divisors (see below), whose sum is σ = 139890355640640. Its totient is φ = 14358247643040.

The previous prime is 55125415064521. The next prime is 55125415064567. The reversal of 55125415064550 is 5546051452155.

It is a super-2 number, since 2×55125415064550² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55125415064550.

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, 4273281540 + ... + 4273294439.

It is an arithmetic number, because the mean of its divisors is an integer number (2914382409180).

Almost surely, 2^{55125415064550} is an apocalyptic number.

55125415064550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55125415064550 is an abundant number, since it is smaller than the sum of its proper divisors (84764940576090).

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

55125415064550 is a wasteful number, since it uses less digits than its factorization.

55125415064550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8546576037 (or 8546576032 counting only the distinct ones).

The product of its (nonzero) digits is 3000000, while the sum is 48.

The spelling of 55125415064550 in words is "fifty-five trillion, one hundred twenty-five billion, four hundred fifteen million, sixty-four thousand, five hundred fifty".