25265623 has 2 divisors, whose sum is σ = 25265624. Its totient is φ = 25265622.

The previous prime is 25265599. The next prime is 25265627. The reversal of 25265623 is 32656252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25265623 - 2¹³ = 25257431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25265627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632811 + 12632812.

It is an arithmetic number, because the mean of its divisors is an integer number (12632812).

Almost surely, 2^25265623 is an apocalyptic number.

25265623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25265623 is an equidigital number, since it uses as much as digits as its factorization.

25265623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 25265623 is about 5026.4921167749. The cubic root of 25265623 is about 293.4337094786.

It can be divided in two parts, 2 and 5265623, that added together give a palindrome (5265625).

The spelling of 25265623 in words is "twenty-five million, two hundred sixty-five thousand, six hundred twenty-three".