25162608313 has 4 divisors (see below), whose sum is σ = 25210905588. Its totient is φ = 25114311040.

The previous prime is 25162608307. The next prime is 25162608347. The reversal of 25162608313 is 31380626152.

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 15039833769 + 10122774544 = 122637^2 + 100612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25162608313 is a prime.

It is a super-2 number, since 2×25162608313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25162608353) 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, 24147856 + ... + 24148897.

It is an arithmetic number, because the mean of its divisors is an integer number (6302726397).

Almost surely, 2^25162608313 is an apocalyptic number.

It is an amenable number.

25162608313 is a deficient number, since it is larger than the sum of its proper divisors (48297275).

25162608313 is an equidigital number, since it uses as much as digits as its factorization.

25162608313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48297274.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 25162608313 in words is "twenty-five billion, one hundred sixty-two million, six hundred eight thousand, three hundred thirteen".