1255765316 has 72 divisors (see below), whose sum is σ = 2629718784. Its totient is φ = 521664000.

The previous prime is 1255765297. The next prime is 1255765319. The reversal of 1255765316 is 6135675521.

It is not an unprimeable number, because it can be changed into a prime (1255765319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261941 + ... + 266691.

It is an arithmetic number, because the mean of its divisors is an integer number (36523872).

Almost surely, 2^1255765316 is an apocalyptic number.

It is an amenable number.

1255765316 is an abundant number, since it is smaller than the sum of its proper divisors (1373953468).

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

1255765316 is a wasteful number, since it uses less digits than its factorization.

1255765316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821 (or 4806 counting only the distinct ones).

The product of its digits is 189000, while the sum is 41.

The square root of 1255765316 is about 35436.7791425801. The cubic root of 1255765316 is about 1078.8709382575.

The spelling of 1255765316 in words is "one billion, two hundred fifty-five million, seven hundred sixty-five thousand, three hundred sixteen".