25320419 has 4 divisors (see below), whose sum is σ = 25373760. Its totient is φ = 25267080.

The previous prime is 25320413. The next prime is 25320433. The reversal of 25320419 is 91402352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25320419 - 2⁴ = 25320403 is a prime.

It is a super-2 number, since 2×25320419² = 1282247236671122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25320413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25952 + ... + 26909.

It is an arithmetic number, because the mean of its divisors is an integer number (6343440).

Almost surely, 2^25320419 is an apocalyptic number.

25320419 is a deficient number, since it is larger than the sum of its proper divisors (53341).

25320419 is an equidigital number, since it uses as much as digits as its factorization.

25320419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53340.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 25320419 is about 5031.9398843786. The cubic root of 25320419 is about 293.6456889933.

The spelling of 25320419 in words is "twenty-five million, three hundred twenty thousand, four hundred nineteen".