253613613 has 32 divisors (see below), whose sum is σ = 390551040. Its totient is φ = 144930240.

The previous prime is 253613611. The next prime is 253613627. The reversal of 253613613 is 316316352.

It is a happy number.

It is not a de Polignac number, because 253613613 - 2¹ = 253613611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253613611) 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, 38070 + ... + 44232.

It is an arithmetic number, because the mean of its divisors is an integer number (12204720).

Almost surely, 2^253613613 is an apocalyptic number.

It is an amenable number.

253613613 is a deficient number, since it is larger than the sum of its proper divisors (136937427).

253613613 is a wasteful number, since it uses less digits than its factorization.

253613613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6249.

The product of its digits is 9720, while the sum is 30.

The square root of 253613613 is about 15925.2507986531. The cubic root of 253613613 is about 632.9812617210.

Adding to 253613613 its reverse (316316352), we get a palindrome (569929965).

The spelling of 253613613 in words is "two hundred fifty-three million, six hundred thirteen thousand, six hundred thirteen".