255405876 has 48 divisors (see below), whose sum is σ = 659850240. Its totient is φ = 76237920.

The previous prime is 255405827. The next prime is 255405893. The reversal of 255405876 is 678504552.

It is a super-2 number, since 2×255405876² = 130464322990654752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5596 + ... + 23283.

It is an arithmetic number, because the mean of its divisors is an integer number (13746880).

Almost surely, 2^255405876 is an apocalyptic number.

It is an amenable number.

255405876 is an abundant number, since it is smaller than the sum of its proper divisors (404444364).

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

255405876 is a wasteful number, since it uses less digits than its factorization.

255405876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28964 (or 28962 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 255405876 is about 15981.4228402855. The cubic root of 255405876 is about 634.4688355810.

The spelling of 255405876 in words is "two hundred fifty-five million, four hundred five thousand, eight hundred seventy-six".