255507550 has 24 divisors (see below), whose sum is σ = 475695000. Its totient is φ = 102106080.

The previous prime is 255507523. The next prime is 255507563. The reversal of 255507550 is 55705552.

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, 75801 + ... + 79099.

It is an arithmetic number, because the mean of its divisors is an integer number (19820625).

Almost surely, 2^255507550 is an apocalyptic number.

255507550 is a deficient number, since it is larger than the sum of its proper divisors (220187450).

255507550 is a wasteful number, since it uses less digits than its factorization.

255507550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860 (or 4855 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 255507550 is about 15984.6035296469. The cubic root of 255507550 is about 634.5530158763.

The spelling of 255507550 in words is "two hundred fifty-five million, five hundred seven thousand, five hundred fifty".