253988313 has 32 divisors (see below), whose sum is σ = 370344960. Its totient is φ = 154183680.

The previous prime is 253988311. The next prime is 253988321. The reversal of 253988313 is 313889352.

It is not a de Polignac number, because 253988313 - 2¹ = 253988311 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253988311) 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, 530008 + ... + 530486.

It is an arithmetic number, because the mean of its divisors is an integer number (11573280).

Almost surely, 2^253988313 is an apocalyptic number.

It is an amenable number.

253988313 is a deficient number, since it is larger than the sum of its proper divisors (116356647).

253988313 is a wasteful number, since it uses less digits than its factorization.

253988313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 155520, while the sum is 42.

The square root of 253988313 is about 15937.0107924918. The cubic root of 253988313 is about 633.2928398548.

The spelling of 253988313 in words is "two hundred fifty-three million, nine hundred eighty-eight thousand, three hundred thirteen".