255855516 has 48 divisors (see below), whose sum is σ = 705815040. Its totient is φ = 70580160.

The previous prime is 255855497. The next prime is 255855527. The reversal of 255855516 is 615558552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 50080 + ... + 54951.

It is an arithmetic number, because the mean of its divisors is an integer number (14704480).

Almost surely, 2^255855516 is an apocalyptic number.

It is an amenable number.

255855516 is an abundant number, since it is smaller than the sum of its proper divisors (449959524).

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

255855516 is a wasteful number, since it uses less digits than its factorization.

255855516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105074 (or 105072 counting only the distinct ones).

The product of its digits is 300000, while the sum is 42.

The square root of 255855516 is about 15995.4842377466. The cubic root of 255855516 is about 634.8409430708.

The spelling of 255855516 in words is "two hundred fifty-five million, eight hundred fifty-five thousand, five hundred sixteen".