1255167872 has 64 divisors (see below), whose sum is σ = 2935062240. Its totient is φ = 523376640.

The previous prime is 1255167827. The next prime is 1255167877. The reversal of 1255167872 is 2787615521.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255167877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14222 + ... + 52082.

Almost surely, 2^1255167872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255167872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467531120).

1255167872 is an abundant number, since it is smaller than the sum of its proper divisors (1679894368).

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

1255167872 is an equidigital number, since it uses as much as digits as its factorization.

1255167872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37919 (or 37907 counting only the distinct ones).

The product of its digits is 235200, while the sum is 44.

The square root of 1255167872 is about 35428.3484232613. The cubic root of 1255167872 is about 1078.6998162580.

The spelling of 1255167872 in words is "one billion, two hundred fifty-five million, one hundred sixty-seven thousand, eight hundred seventy-two".