25513502207 has 2 divisors, whose sum is σ = 25513502208. Its totient is φ = 25513502206.

The previous prime is 25513502167. The next prime is 25513502213. The reversal of 25513502207 is 70220531552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25513502207 - 2²⁴ = 25496724991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25513502227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12756751103 + 12756751104.

It is an arithmetic number, because the mean of its divisors is an integer number (12756751104).

Almost surely, 2^25513502207 is an apocalyptic number.

25513502207 is a deficient number, since it is larger than the sum of its proper divisors (1).

25513502207 is an equidigital number, since it uses as much as digits as its factorization.

25513502207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The spelling of 25513502207 in words is "twenty-five billion, five hundred thirteen million, five hundred two thousand, two hundred seven".