25264247 has 2 divisors, whose sum is σ = 25264248. Its totient is φ = 25264246.

The previous prime is 25264231. The next prime is 25264277. The reversal of 25264247 is 74246252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25264247 - 2⁴ = 25264231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25264207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632123 + 12632124.

It is an arithmetic number, because the mean of its divisors is an integer number (12632124).

Almost surely, 2^25264247 is an apocalyptic number.

25264247 is a deficient number, since it is larger than the sum of its proper divisors (1).

25264247 is an equidigital number, since it uses as much as digits as its factorization.

25264247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 32.

The square root of 25264247 is about 5026.3552401318. The cubic root of 25264247 is about 293.4283824496.

The spelling of 25264247 in words is "twenty-five million, two hundred sixty-four thousand, two hundred forty-seven".