1255605516 has 96 divisors (see below), whose sum is σ = 3760162560. Its totient is φ = 358099200.

The previous prime is 1255605509. The next prime is 1255605529. The reversal of 1255605516 is 6155065521.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10890 + ... + 51281.

It is an arithmetic number, because the mean of its divisors is an integer number (39168360).

Almost surely, 2^1255605516 is an apocalyptic number.

It is an amenable number.

1255605516 is an abundant number, since it is smaller than the sum of its proper divisors (2504557044).

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

1255605516 is a wasteful number, since it uses less digits than its factorization.

1255605516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62212 (or 62204 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 1255605516 is about 35434.5243512595. The cubic root of 1255605516 is about 1078.8251731008.

The spelling of 1255605516 in words is "one billion, two hundred fifty-five million, six hundred five thousand, five hundred sixteen".