55805607500 has 30 divisors (see below), whose sum is σ = 122035707948. Its totient is φ = 22322242000.

The previous prime is 55805607493. The next prime is 55805607527. The reversal of 55805607500 is 570650855.

It is a super-2 number, since 2×55805607500² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11158622 + ... + 11163621.

Almost surely, 2^55805607500 is an apocalyptic number.

55805607500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55805607500 is an abundant number, since it is smaller than the sum of its proper divisors (66230100448).

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

55805607500 is a wasteful number, since it uses less digits than its factorization.

55805607500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22322267 (or 22322250 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 55805607500 in words is "fifty-five billion, eight hundred five million, six hundred seven thousand, five hundred".