25131713 has 2 divisors, whose sum is σ = 25131714. Its totient is φ = 25131712.

The previous prime is 25131707. The next prime is 25131739. The reversal of 25131713 is 31713152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21418384 + 3713329 = 4628^2 + 1927^2 .

It is a cyclic number.

It is not a de Polignac number, because 25131713 - 2⁴ = 25131697 is a prime.

It is not a weakly prime, because it can be changed into another prime (25131413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565856 + 12565857.

It is an arithmetic number, because the mean of its divisors is an integer number (12565857).

Almost surely, 2^25131713 is an apocalyptic number.

It is an amenable number.

25131713 is a deficient number, since it is larger than the sum of its proper divisors (1).

25131713 is an equidigital number, since it uses as much as digits as its factorization.

25131713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 23.

The square root of 25131713 is about 5013.1539972357. The cubic root of 25131713 is about 292.9143828400.

Adding to 25131713 its reverse (31713152), we get a palindrome (56844865).

The spelling of 25131713 in words is "twenty-five million, one hundred thirty-one thousand, seven hundred thirteen".