55555800 has 48 divisors (see below), whose sum is σ = 172224840. Its totient is φ = 14814720.

The previous prime is 55555777. The next prime is 55555817. The reversal of 55555800 is 855555.

It is a super-3 number, since 3×55555800³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45697 + ... + 46896.

Almost surely, 2^55555800 is an apocalyptic number.

55555800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55555800 is an abundant number, since it is smaller than the sum of its proper divisors (116669040).

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

55555800 is a wasteful number, since it uses less digits than its factorization.

55555800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92612 (or 92603 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 55555800 is about 7453.5763228131. The cubic root of 55555800 is about 381.5719738217.

The spelling of 55555800 in words is "fifty-five million, five hundred fifty-five thousand, eight hundred".