25947413 has 4 divisors (see below), whose sum is σ = 26009760. Its totient is φ = 25885068.

The previous prime is 25947409. The next prime is 25947419. The reversal of 25947413 is 31474952.

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 25947413 - 2² = 25947409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25947419) 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, 30545 + ... + 31382.

It is an arithmetic number, because the mean of its divisors is an integer number (6502440).

Almost surely, 2^25947413 is an apocalyptic number.

It is an amenable number.

25947413 is a deficient number, since it is larger than the sum of its proper divisors (62347).

25947413 is an equidigital number, since it uses as much as digits as its factorization.

25947413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62346.

The product of its digits is 30240, while the sum is 35.

The square root of 25947413 is about 5093.8603239586. The cubic root of 25947413 is about 296.0497428272.

The spelling of 25947413 in words is "twenty-five million, nine hundred forty-seven thousand, four hundred thirteen".