1255877844 has 24 divisors (see below), whose sum is σ = 3155796000. Its totient is φ = 386423904.

The previous prime is 1255877807. The next prime is 1255877899. The reversal of 1255877844 is 4487785521.

It is a happy number.

1255877844 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 4025094 + ... + 4025405.

It is an arithmetic number, because the mean of its divisors is an integer number (131491500).

Almost surely, 2^1255877844 is an apocalyptic number.

It is an amenable number.

1255877844 is an abundant number, since it is smaller than the sum of its proper divisors (1899918156).

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

1255877844 is a wasteful number, since it uses less digits than its factorization.

1255877844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050519 (or 8050517 counting only the distinct ones).

The product of its digits is 2508800, while the sum is 51.

The square root of 1255877844 is about 35438.3668359590. The cubic root of 1255877844 is about 1078.9031628463.

The spelling of 1255877844 in words is "one billion, two hundred fifty-five million, eight hundred seventy-seven thousand, eight hundred forty-four".