625234613 has 4 divisors (see below), whose sum is σ = 625840908. Its totient is φ = 624628320.

The previous prime is 625234579. The next prime is 625234637. The reversal of 625234613 is 316432526.

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

It can be written as a sum of positive squares in 2 ways, for example, as 508637809 + 116596804 = 22553^2 + 10798^2 .

It is a cyclic number.

It is not a de Polignac number, because 625234613 - 2²⁰ = 624186037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625234613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625234213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301598 + ... + 303663.

It is an arithmetic number, because the mean of its divisors is an integer number (156460227).

Almost surely, 2^625234613 is an apocalyptic number.

It is an amenable number.

625234613 is a deficient number, since it is larger than the sum of its proper divisors (606295).

625234613 is a wasteful number, since it uses less digits than its factorization.

625234613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606294.

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

The square root of 625234613 is about 25004.6918197366. The cubic root of 625234613 is about 855.0949419779.

The spelling of 625234613 in words is "six hundred twenty-five million, two hundred thirty-four thousand, six hundred thirteen".