253171256 has 16 divisors (see below), whose sum is σ = 511211400. Its totient is φ = 116848224.

The previous prime is 253171249. The next prime is 253171271. The reversal of 253171256 is 652171352.

253171256 is digitally balanced in base 2, 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 3 ways as a sum of consecutive naturals, for example, 1217066 + ... + 1217273.

Almost surely, 2^253171256 is an apocalyptic number.

253171256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

253171256 is an abundant number, since it is smaller than the sum of its proper divisors (258040144).

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

253171256 is a wasteful number, since it uses less digits than its factorization.

253171256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434358 (or 2434354 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 253171256 is about 15911.3561961261. The cubic root of 253171256 is about 632.6130287987.

The spelling of 253171256 in words is "two hundred fifty-three million, one hundred seventy-one thousand, two hundred fifty-six".