613243255 has 4 divisors (see below), whose sum is σ = 735891912. Its totient is φ = 490594600.

The previous prime is 613243247. The next prime is 613243303. The reversal of 613243255 is 552342316.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 613243255 - 2³ = 613243247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61324321 + ... + 61324330.

It is an arithmetic number, because the mean of its divisors is an integer number (183972978).

Almost surely, 2^613243255 is an apocalyptic number.

613243255 is a deficient number, since it is larger than the sum of its proper divisors (122648657).

613243255 is a wasteful number, since it uses less digits than its factorization.

613243255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122648656.

The product of its digits is 21600, while the sum is 31.

The square root of 613243255 is about 24763.7488074807. The cubic root of 613243255 is about 849.5930023840.

The spelling of 613243255 in words is "six hundred thirteen million, two hundred forty-three thousand, two hundred fifty-five".