25356049 has 2 divisors, whose sum is σ = 25356050. Its totient is φ = 25356048.

The previous prime is 25356041. The next prime is 25356073. The reversal of 25356049 is 94065352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21455424 + 3900625 = 4632^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 25356049 - 2³ = 25356041 is a prime.

It is not a weakly prime, because it can be changed into another prime (25356041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12678024 + 12678025.

It is an arithmetic number, because the mean of its divisors is an integer number (12678025).

Almost surely, 2^25356049 is an apocalyptic number.

It is an amenable number.

25356049 is a deficient number, since it is larger than the sum of its proper divisors (1).

25356049 is an equidigital number, since it uses as much as digits as its factorization.

25356049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 25356049 is about 5035.4790238864. The cubic root of 25356049 is about 293.7833603881.

The spelling of 25356049 in words is "twenty-five million, three hundred fifty-six thousand, forty-nine".