25839401 has 4 divisors (see below), whose sum is σ = 29530752. Its totient is φ = 22148052.

The previous prime is 25839397. The next prime is 25839413. The reversal of 25839401 is 10493852.

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 25839401 - 2² = 25839397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25839491) 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, 1845665 + ... + 1845678.

It is an arithmetic number, because the mean of its divisors is an integer number (7382688).

Almost surely, 2^25839401 is an apocalyptic number.

It is an amenable number.

25839401 is a deficient number, since it is larger than the sum of its proper divisors (3691351).

25839401 is an equidigital number, since it uses as much as digits as its factorization.

25839401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691350.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 25839401 is about 5083.2470921646. The cubic root of 25839401 is about 295.6383800692.

The spelling of 25839401 in words is "twenty-five million, eight hundred thirty-nine thousand, four hundred one".