25360964947 has 2 divisors, whose sum is σ = 25360964948. Its totient is φ = 25360964946.

The previous prime is 25360964897. The next prime is 25360964971. The reversal of 25360964947 is 74946906352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25360964947 - 2³¹ = 23213481299 is a prime.

It is not a weakly prime, because it can be changed into another prime (25360964987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680482473 + 12680482474.

It is an arithmetic number, because the mean of its divisors is an integer number (12680482474).

Almost surely, 2^25360964947 is an apocalyptic number.

25360964947 is a deficient number, since it is larger than the sum of its proper divisors (1).

25360964947 is an equidigital number, since it uses as much as digits as its factorization.

25360964947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 25360964947 in words is "twenty-five billion, three hundred sixty million, nine hundred sixty-four thousand, nine hundred forty-seven".