25219379 has 4 divisors (see below), whose sum is σ = 25291176. Its totient is φ = 25147584.

The previous prime is 25219351. The next prime is 25219393. The reversal of 25219379 is 97391252.

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 25219379 - 2⁸ = 25219123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25219309) 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, 35369 + ... + 36074.

It is an arithmetic number, because the mean of its divisors is an integer number (6322794).

Almost surely, 2^25219379 is an apocalyptic number.

25219379 is a deficient number, since it is larger than the sum of its proper divisors (71797).

25219379 is an equidigital number, since it uses as much as digits as its factorization.

25219379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71796.

The product of its digits is 34020, while the sum is 38.

The square root of 25219379 is about 5021.8899828650. The cubic root of 25219379 is about 293.2545749588.

The spelling of 25219379 in words is "twenty-five million, two hundred nineteen thousand, three hundred seventy-nine".