25215327575507 has 2 divisors, whose sum is σ = 25215327575508. Its totient is φ = 25215327575506.

The previous prime is 25215327575323. The next prime is 25215327575509. The reversal of 25215327575507 is 70557572351252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25215327575507 - 2²⁴ = 25215310798291 is a prime.

Together with 25215327575509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25215327575509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12607663787753 + 12607663787754.

It is an arithmetic number, because the mean of its divisors is an integer number (12607663787754).

Almost surely, 2^{25215327575507} is an apocalyptic number.

25215327575507 is a deficient number, since it is larger than the sum of its proper divisors (1).

25215327575507 is an equidigital number, since it uses as much as digits as its factorization.

25215327575507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25725000, while the sum is 56.

The spelling of 25215327575507 in words is "twenty-five trillion, two hundred fifteen billion, three hundred twenty-seven million, five hundred seventy-five thousand, five hundred seven".