25662627013 has 2 divisors, whose sum is σ = 25662627014. Its totient is φ = 25662627012.

The previous prime is 25662627007. The next prime is 25662627019. The reversal of 25662627013 is 31072626652.

It is a balanced prime because it is at equal distance from previous prime (25662627007) and next prime (25662627019).

It can be written as a sum of positive squares in only one way, i.e., 17576660929 + 8085966084 = 132577^2 + 89922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25662627013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25662627019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12831313506 + 12831313507.

It is an arithmetic number, because the mean of its divisors is an integer number (12831313507).

Almost surely, 2^25662627013 is an apocalyptic number.

It is an amenable number.

25662627013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25662627013 is an equidigital number, since it uses as much as digits as its factorization.

25662627013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 25662627013 in words is "twenty-five billion, six hundred sixty-two million, six hundred twenty-seven thousand, thirteen".