255115550 has 24 divisors (see below), whose sum is σ = 479131536. Its totient is φ = 101053440.

The previous prime is 255115547. The next prime is 255115621. The reversal of 255115550 is 55511552.

255115550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 19619 + ... + 29918.

It is an arithmetic number, because the mean of its divisors is an integer number (19963814).

Almost surely, 2^255115550 is an apocalyptic number.

255115550 is a deficient number, since it is larger than the sum of its proper divisors (224015986).

255115550 is a wasteful number, since it uses less digits than its factorization.

255115550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49652 (or 49647 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 255115550 is about 15972.3370237420. The cubic root of 255115550 is about 634.2283391053.

The spelling of 255115550 in words is "two hundred fifty-five million, one hundred fifteen thousand, five hundred fifty".