25590263 has 2 divisors, whose sum is σ = 25590264. Its totient is φ = 25590262.

The previous prime is 25590241. The next prime is 25590277. The reversal of 25590263 is 36209552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25590263 - 2¹² = 25586167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25590463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12795131 + 12795132.

It is an arithmetic number, because the mean of its divisors is an integer number (12795132).

Almost surely, 2^25590263 is an apocalyptic number.

25590263 is a deficient number, since it is larger than the sum of its proper divisors (1).

25590263 is an equidigital number, since it uses as much as digits as its factorization.

25590263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 25590263 is about 5058.6819429571. The cubic root of 25590263 is about 294.6851490958.

The spelling of 25590263 in words is "twenty-five million, five hundred ninety thousand, two hundred sixty-three".