25256207 has 2 divisors, whose sum is σ = 25256208. Its totient is φ = 25256206.

The previous prime is 25256201. The next prime is 25256243. The reversal of 25256207 is 70265252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25256207 - 2¹² = 25252111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25256207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25256201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12628103 + 12628104.

It is an arithmetic number, because the mean of its divisors is an integer number (12628104).

Almost surely, 2^25256207 is an apocalyptic number.

25256207 is a deficient number, since it is larger than the sum of its proper divisors (1).

25256207 is an equidigital number, since it uses as much as digits as its factorization.

25256207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25256207 is about 5025.5553921930. Note that the first 3 decimals coincide. The cubic root of 25256207 is about 293.3972526282.

The spelling of 25256207 in words is "twenty-five million, two hundred fifty-six thousand, two hundred seven".