613259253 has 6 divisors (see below), whose sum is σ = 885818934. Its totient is φ = 408839496.

The previous prime is 613259239. The next prime is 613259261. The reversal of 613259253 is 352952316.

613259253 is a `hidden beast` number, since 6 + 13 + 2 + 592 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 506385009 + 106874244 = 22503^2 + 10338^2 .

It is not a de Polignac number, because 613259253 - 2⁵ = 613259221 is a prime.

It is a super-2 number, since 2×613259253² = 752173822780236018, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613259653) 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 5 ways as a sum of consecutive naturals, for example, 34069950 + ... + 34069967.

It is an arithmetic number, because the mean of its divisors is an integer number (147636489).

Almost surely, 2^613259253 is an apocalyptic number.

It is an amenable number.

613259253 is a deficient number, since it is larger than the sum of its proper divisors (272559681).

613259253 is a wasteful number, since it uses less digits than its factorization.

613259253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68139923 (or 68139920 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 613259253 is about 24764.0718178574. The cubic root of 613259253 is about 849.6003902466.

The spelling of 613259253 in words is "six hundred thirteen million, two hundred fifty-nine thousand, two hundred fifty-three".