25307335013 has 2 divisors, whose sum is σ = 25307335014. Its totient is φ = 25307335012.

The previous prime is 25307335007. The next prime is 25307335037. The reversal of 25307335013 is 31053370352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21863171044 + 3444163969 = 147862^2 + 58687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25307335013 is a prime.

It is a super-2 number, since 2×25307335013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25307335063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12653667506 + 12653667507.

It is an arithmetic number, because the mean of its divisors is an integer number (12653667507).

Almost surely, 2^25307335013 is an apocalyptic number.

It is an amenable number.

25307335013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25307335013 is an equidigital number, since it uses as much as digits as its factorization.

25307335013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 32.

The spelling of 25307335013 in words is "twenty-five billion, three hundred seven million, three hundred thirty-five thousand, thirteen".