25031511513079 has 2 divisors, whose sum is σ = 25031511513080. Its totient is φ = 25031511513078.

The previous prime is 25031511513007. The next prime is 25031511513101. The reversal of 25031511513079 is 97031511513052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25031511513079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25031511513979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515755756539 + 12515755756540.

It is an arithmetic number, because the mean of its divisors is an integer number (12515755756540).

Almost surely, 2^{25031511513079} is an apocalyptic number.

25031511513079 is a deficient number, since it is larger than the sum of its proper divisors (1).

25031511513079 is an equidigital number, since it uses as much as digits as its factorization.

25031511513079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 43.

The spelling of 25031511513079 in words is "twenty-five trillion, thirty-one billion, five hundred eleven million, five hundred thirteen thousand, seventy-nine".