25360964987 has 2 divisors, whose sum is σ = 25360964988. Its totient is φ = 25360964986.

The previous prime is 25360964971. The next prime is 25360965083. The reversal of 25360964987 is 78946906352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25360964987 - 2⁴ = 25360964971 is a prime.

It is not a weakly prime, because it can be changed into another prime (25360964947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680482493 + 12680482494.

It is an arithmetic number, because the mean of its divisors is an integer number (12680482494).

Almost surely, 2^25360964987 is an apocalyptic number.

25360964987 is a deficient number, since it is larger than the sum of its proper divisors (1).

25360964987 is an equidigital number, since it uses as much as digits as its factorization.

25360964987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 25360964987 in words is "twenty-five billion, three hundred sixty million, nine hundred sixty-four thousand, nine hundred eighty-seven".