523251313 has 8 divisors (see below), whose sum is σ = 596648808. Its totient is φ = 454589184.

The previous prime is 523251259. The next prime is 523251331. The reversal of 523251313 is 313152325.

It can be written as a sum of positive squares in 4 ways, for example, as 220908769 + 302342544 = 14863^2 + 17388^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523251313 - 2²⁵ = 489696881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523251343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183606 + ... + 1184047.

It is an arithmetic number, because the mean of its divisors is an integer number (74581101).

Almost surely, 2^523251313 is an apocalyptic number.

It is an amenable number.

523251313 is a deficient number, since it is larger than the sum of its proper divisors (73397495).

523251313 is a wasteful number, since it uses less digits than its factorization.

523251313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367683.

The product of its digits is 2700, while the sum is 25.

The square root of 523251313 is about 22874.6871672598. The cubic root of 523251313 is about 805.8176499885.

The spelling of 523251313 in words is "five hundred twenty-three million, two hundred fifty-one thousand, three hundred thirteen".