25524449 has 2 divisors, whose sum is σ = 25524450. Its totient is φ = 25524448.

The previous prime is 25524419. The next prime is 25524461. The reversal of 25524449 is 94442552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 5094049 = 4520^2 + 2257^2 .

It is a cyclic number.

It is not a de Polignac number, because 25524449 - 2⁸ = 25524193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25524419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762224 + 12762225.

It is an arithmetic number, because the mean of its divisors is an integer number (12762225).

Almost surely, 2^25524449 is an apocalyptic number.

It is an amenable number.

25524449 is a deficient number, since it is larger than the sum of its proper divisors (1).

25524449 is an equidigital number, since it uses as much as digits as its factorization.

25524449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 25524449 is about 5052.1727009278. The cubic root of 25524449 is about 294.4323047670.

The spelling of 25524449 in words is "twenty-five million, five hundred twenty-four thousand, four hundred forty-nine".