55500050560 has 32 divisors (see below), whose sum is σ = 132679809900. Its totient is φ = 22200019968.

The previous prime is 55500050549. The next prime is 55500050561. The reversal of 55500050560 is 6505000555.

It can be written as a sum of positive squares in 2 ways, for example, as 52499640384 + 3000410176 = 229128^2 + 54776^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×55500050560² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55500050561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43358775 + ... + 43360054.

Almost surely, 2^55500050560 is an apocalyptic number.

It is an amenable number.

55500050560 is an abundant number, since it is smaller than the sum of its proper divisors (77179759340).

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

55500050560 is an equidigital number, since it uses as much as digits as its factorization.

55500050560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86718848 (or 86718836 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 55500050560 in words is "fifty-five billion, five hundred million, fifty thousand, five hundred sixty".