25434413 has 2 divisors, whose sum is σ = 25434414. Its totient is φ = 25434412.

The previous prime is 25434403. The next prime is 25434427. The reversal of 25434413 is 31443452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24186724 + 1247689 = 4918^2 + 1117^2 .

It is a cyclic number.

It is not a de Polignac number, because 25434413 - 2⁶ = 25434349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25434403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12717206 + 12717207.

It is an arithmetic number, because the mean of its divisors is an integer number (12717207).

Almost surely, 2^25434413 is an apocalyptic number.

It is an amenable number.

25434413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25434413 is an equidigital number, since it uses as much as digits as its factorization.

25434413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 25434413 is about 5043.2542073546. The cubic root of 25434413 is about 294.0856993291.

Adding to 25434413 its reverse (31443452), we get a palindrome (56877865).

The spelling of 25434413 in words is "twenty-five million, four hundred thirty-four thousand, four hundred thirteen".