25705627 has 2 divisors, whose sum is σ = 25705628. Its totient is φ = 25705626.

The previous prime is 25705609. The next prime is 25705637. The reversal of 25705627 is 72650752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25705627 - 2²³ = 17317019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25705592 and 25705601.

It is not a weakly prime, because it can be changed into another prime (25705637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12852813 + 12852814.

It is an arithmetic number, because the mean of its divisors is an integer number (12852814).

Almost surely, 2^25705627 is an apocalyptic number.

25705627 is a deficient number, since it is larger than the sum of its proper divisors (1).

25705627 is an equidigital number, since it uses as much as digits as its factorization.

25705627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 25705627 is about 5070.0716957455. The cubic root of 25705627 is about 295.1273107491.

The spelling of 25705627 in words is "twenty-five million, seven hundred five thousand, six hundred twenty-seven".