253315899 has 24 divisors (see below), whose sum is σ = 379744560. Its totient is φ = 162525888.

The previous prime is 253315897. The next prime is 253315901. The reversal of 253315899 is 998513352.

253315899 is a `hidden beast` number, since 253 + 315 + 89 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (253315897) and next prime (253315901).

It is not a de Polignac number, because 253315899 - 2¹ = 253315897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253315897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89169 + ... + 91965.

It is an arithmetic number, because the mean of its divisors is an integer number (15822690).

Almost surely, 2^253315899 is an apocalyptic number.

253315899 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

253315899 is a deficient number, since it is larger than the sum of its proper divisors (126428661).

253315899 is a wasteful number, since it uses less digits than its factorization.

253315899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179 (or 3176 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 253315899 is about 15915.9008227621. The cubic root of 253315899 is about 632.7334816854.

The spelling of 253315899 in words is "two hundred fifty-three million, three hundred fifteen thousand, eight hundred ninety-nine".