25442413 has 4 divisors (see below), whose sum is σ = 26263168. Its totient is φ = 24621660.

The previous prime is 25442411. The next prime is 25442419. The reversal of 25442413 is 31424452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25442413 - 2¹ = 25442411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442411) 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 in 3 ways as a sum of consecutive naturals, for example, 410331 + ... + 410392.

It is an arithmetic number, because the mean of its divisors is an integer number (6565792).

Almost surely, 2^25442413 is an apocalyptic number.

It is an amenable number.

25442413 is a deficient number, since it is larger than the sum of its proper divisors (820755).

25442413 is an equidigital number, since it uses as much as digits as its factorization.

25442413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820754.

The product of its digits is 3840, while the sum is 25.

The square root of 25442413 is about 5044.0472836800. The cubic root of 25442413 is about 294.1165294616.

Adding to 25442413 its reverse (31424452), we get a palindrome (56866865).

The spelling of 25442413 in words is "twenty-five million, four hundred forty-two thousand, four hundred thirteen".