25361579 has 2 divisors, whose sum is σ = 25361580. Its totient is φ = 25361578.

The previous prime is 25361537. The next prime is 25361593. The reversal of 25361579 is 97516352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25361579 - 2¹² = 25357483 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25361179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680789 + 12680790.

It is an arithmetic number, because the mean of its divisors is an integer number (12680790).

Almost surely, 2^25361579 is an apocalyptic number.

25361579 is a deficient number, since it is larger than the sum of its proper divisors (1).

25361579 is an equidigital number, since it uses as much as digits as its factorization.

25361579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 25361579 is about 5036.0280976182. The cubic root of 25361579 is about 293.8047162900.

The spelling of 25361579 in words is "twenty-five million, three hundred sixty-one thousand, five hundred seventy-nine".