253231671 has 32 divisors (see below), whose sum is σ = 426751488. Its totient is φ = 129738240.

The previous prime is 253231603. The next prime is 253231673. The reversal of 253231671 is 176132352.

It is not a de Polignac number, because 253231671 - 2²⁷ = 119013943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253231673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9355 + ... + 24371.

It is an arithmetic number, because the mean of its divisors is an integer number (13335984).

Almost surely, 2^253231671 is an apocalyptic number.

253231671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

253231671 is a deficient number, since it is larger than the sum of its proper divisors (173519817).

253231671 is a wasteful number, since it uses less digits than its factorization.

253231671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15111.

The product of its digits is 7560, while the sum is 30.

The square root of 253231671 is about 15913.2545696976. The cubic root of 253231671 is about 632.6633455645.

The spelling of 253231671 in words is "two hundred fifty-three million, two hundred thirty-one thousand, six hundred seventy-one".