25401413 has 4 divisors (see below), whose sum is σ = 25430208. Its totient is φ = 25372620.

The previous prime is 25401391. The next prime is 25401443. The reversal of 25401413 is 31410452.

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 a de Polignac number, because none of the positive numbers 2^k-25401413 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 (25401443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13031 + ... + 14852.

It is an arithmetic number, because the mean of its divisors is an integer number (6357552).

Almost surely, 2^25401413 is an apocalyptic number.

It is an amenable number.

25401413 is a deficient number, since it is larger than the sum of its proper divisors (28795).

25401413 is an equidigital number, since it uses as much as digits as its factorization.

25401413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28794.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25401413 is about 5039.9814483786. The cubic root of 25401413 is about 293.9584566534.

Adding to 25401413 its reverse (31410452), we get a palindrome (56811865).

The spelling of 25401413 in words is "twenty-five million, four hundred one thousand, four hundred thirteen".