25266497 has 2 divisors, whose sum is σ = 25266498. Its totient is φ = 25266496.

The previous prime is 25266487. The next prime is 25266509. The reversal of 25266497 is 79466252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25240576 + 25921 = 5024^2 + 161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25266497 is a prime.

It is not a weakly prime, because it can be changed into another prime (25266427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12633248 + 12633249.

It is an arithmetic number, because the mean of its divisors is an integer number (12633249).

Almost surely, 2^25266497 is an apocalyptic number.

It is an amenable number.

25266497 is a deficient number, since it is larger than the sum of its proper divisors (1).

25266497 is an equidigital number, since it uses as much as digits as its factorization.

25266497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 25266497 is about 5026.5790553815. The cubic root of 25266497 is about 293.4370929706.

The spelling of 25266497 in words is "twenty-five million, two hundred sixty-six thousand, four hundred ninety-seven".