25052449 has 2 divisors, whose sum is σ = 25052450. Its totient is φ = 25052448.

The previous prime is 25052437. The next prime is 25052459. The reversal of 25052449 is 94425052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13950225 + 11102224 = 3735^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 25052449 - 2¹⁵ = 25019681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25052449.

It is not a weakly prime, because it can be changed into another prime (25052459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12526224 + 12526225.

It is an arithmetic number, because the mean of its divisors is an integer number (12526225).

Almost surely, 2^25052449 is an apocalyptic number.

It is an amenable number.

25052449 is a deficient number, since it is larger than the sum of its proper divisors (1).

25052449 is an equidigital number, since it uses as much as digits as its factorization.

25052449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 25052449 is about 5005.2421519843. The cubic root of 25052449 is about 292.6061133976.

The spelling of 25052449 in words is "twenty-five million, fifty-two thousand, four hundred forty-nine".