255557550 has 24 divisors (see below), whose sum is σ = 633783096. Its totient is φ = 68148640.

The previous prime is 255557513. The next prime is 255557563. The reversal of 255557550 is 55755552.

It is a happy number.

255557550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×255557550² = 130619322724005000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255557499 and 255557508.

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, 851709 + ... + 852008.

It is an arithmetic number, because the mean of its divisors is an integer number (26407629).

Almost surely, 2^255557550 is an apocalyptic number.

255557550 is an abundant number, since it is smaller than the sum of its proper divisors (378225546).

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

255557550 is a wasteful number, since it uses less digits than its factorization.

255557550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703732 (or 1703727 counting only the distinct ones).

The product of its (nonzero) digits is 218750, while the sum is 39.

The square root of 255557550 is about 15986.1674581496. The cubic root of 255557550 is about 634.5944048443.

The spelling of 255557550 in words is "two hundred fifty-five million, five hundred fifty-seven thousand, five hundred fifty".