253642613 has 32 divisors (see below), whose sum is σ = 308448000. Its totient is φ = 204019200.

The previous prime is 253642603. The next prime is 253642621. The reversal of 253642613 is 316246352.

It is not a de Polignac number, because 253642613 - 2⁶ = 253642549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253642613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253642603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1824698 + ... + 1824836.

It is an arithmetic number, because the mean of its divisors is an integer number (9639000).

Almost surely, 2^253642613 is an apocalyptic number.

It is an amenable number.

253642613 is a deficient number, since it is larger than the sum of its proper divisors (54805387).

253642613 is a wasteful number, since it uses less digits than its factorization.

253642613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

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

The square root of 253642613 is about 15926.1612763403. The cubic root of 253642613 is about 633.0053873410.

Adding to 253642613 its reverse (316246352), we get a palindrome (569888965).

The spelling of 253642613 in words is "two hundred fifty-three million, six hundred forty-two thousand, six hundred thirteen".