25585379 has 4 divisors (see below), whose sum is σ = 26068176. Its totient is φ = 25102584.

The previous prime is 25585369. The next prime is 25585393. The reversal of 25585379 is 97358552.

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 25585379 - 2⁴ = 25585363 is a prime.

It is a super-2 number, since 2×25585379² = 1309223237147282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25585319) 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, 241319 + ... + 241424.

It is an arithmetic number, because the mean of its divisors is an integer number (6517044).

Almost surely, 2^25585379 is an apocalyptic number.

25585379 is a deficient number, since it is larger than the sum of its proper divisors (482797).

25585379 is an equidigital number, since it uses as much as digits as its factorization.

25585379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482796.

The product of its digits is 378000, while the sum is 44.

The square root of 25585379 is about 5058.1991854809. The cubic root of 25585379 is about 294.6664006388. Note that the first 3 decimals are identical.

The spelling of 25585379 in words is "twenty-five million, five hundred eighty-five thousand, three hundred seventy-nine".