55581466260 has 48 divisors (see below), whose sum is σ = 157503157056. Its totient is φ = 14643148032.

The previous prime is 55581466223. The next prime is 55581466261. The reversal of 55581466260 is 6266418555.

It is a super-2 number, since 2×55581466260² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55581466261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5575489 + ... + 5585448.

It is an arithmetic number, because the mean of its divisors is an integer number (3281315772).

Almost surely, 2^55581466260 is an apocalyptic number.

It is an amenable number.

55581466260 is an abundant number, since it is smaller than the sum of its proper divisors (101921690796).

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

55581466260 is a wasteful number, since it uses less digits than its factorization.

55581466260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161032 (or 11161030 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 55581466260 in words is "fifty-five billion, five hundred eighty-one million, four hundred sixty-six thousand, two hundred sixty".