1255405956 has 24 divisors (see below), whose sum is σ = 3347749440. Its totient is φ = 358687392.

The previous prime is 1255405927. The next prime is 1255405961. The reversal of 1255405956 is 6595045521.

1255405956 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1255405956² = 3152088228720547872, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7472571 + ... + 7472738.

It is an arithmetic number, because the mean of its divisors is an integer number (139489560).

Almost surely, 2^1255405956 is an apocalyptic number.

It is an amenable number.

1255405956 is an abundant number, since it is smaller than the sum of its proper divisors (2092343484).

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

1255405956 is a wasteful number, since it uses less digits than its factorization.

1255405956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14945323 (or 14945321 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 42.

The square root of 1255405956 is about 35431.7083415406. The cubic root of 1255405956 is about 1078.7680156164.

The spelling of 1255405956 in words is "one billion, two hundred fifty-five million, four hundred five thousand, nine hundred fifty-six".