325402813 has 4 divisors (see below), whose sum is σ = 326324988. Its totient is φ = 324480640.

The previous prime is 325402789. The next prime is 325402837. The reversal of 325402813 is 318204523.

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

It is an interprime number because it is at equal distance from previous prime (325402789) and next prime (325402837).

It can be written as a sum of positive squares in 2 ways, for example, as 226141444 + 99261369 = 15038^2 + 9963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325402813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325409813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460558 + ... + 461263.

It is an arithmetic number, because the mean of its divisors is an integer number (81581247).

Almost surely, 2^325402813 is an apocalyptic number.

It is an amenable number.

325402813 is a deficient number, since it is larger than the sum of its proper divisors (922175).

325402813 is an equidigital number, since it uses as much as digits as its factorization.

325402813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922174.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 325402813 is about 18038.9249402507. The cubic root of 325402813 is about 687.8183652990.

It can be divided in two parts, 32540 and 2813, that added together give a palindrome (35353).

The spelling of 325402813 in words is "three hundred twenty-five million, four hundred two thousand, eight hundred thirteen".