253313384 has 16 divisors (see below), whose sum is σ = 479321700. Its totient is φ = 125494272.

The previous prime is 253313383. The next prime is 253313407. The reversal of 253313384 is 483313352.

It can be written as a sum of positive squares in 2 ways, for example, as 248945284 + 4368100 = 15778^2 + 2090^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253313384.

It is not an unprimeable number, because it can be changed into a prime (253313381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144377 + ... + 146120.

Almost surely, 2^253313384 is an apocalyptic number.

It is an amenable number.

253313384 is a deficient number, since it is larger than the sum of its proper divisors (226008316).

253313384 is a wasteful number, since it uses less digits than its factorization.

253313384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290612 (or 290608 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 253313384 is about 15915.8218135288. The cubic root of 253313384 is about 632.7313876861.

Subtracting from 253313384 its sum of digits (32), we obtain a palindrome (253313352).

The spelling of 253313384 in words is "two hundred fifty-three million, three hundred thirteen thousand, three hundred eighty-four".