25623610452313 has 4 divisors (see below), whose sum is σ = 26248576560948. Its totient is φ = 24998644343680.

The previous prime is 25623610452299. The next prime is 25623610452331. The reversal of 25623610452313 is 31325401632652.

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 666522022464 + 24957088429849 = 816408^2 + 4995707^2 .

It is a cyclic number.

It is not a de Polignac number, because 25623610452313 - 2²¹ = 25623608355161 is a prime.

It is a super-2 number, since 2×25623610452313² (a number of 28 digits) contains 22 as substring.

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 25623610452313.

It is not an unprimeable number, because it can be changed into a prime (25623610452373) 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, 312483054256 + ... + 312483054337.

It is an arithmetic number, because the mean of its divisors is an integer number (6562144140237).

Almost surely, 2^{25623610452313} is an apocalyptic number.

It is an amenable number.

25623610452313 is a deficient number, since it is larger than the sum of its proper divisors (624966108635).

25623610452313 is an equidigital number, since it uses as much as digits as its factorization.

25623610452313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624966108634.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 25623610452313 in words is "twenty-five trillion, six hundred twenty-three billion, six hundred ten million, four hundred fifty-two thousand, three hundred thirteen".