25212379 has 2 divisors, whose sum is σ = 25212380. Its totient is φ = 25212378.

The previous prime is 25212371. The next prime is 25212389. The reversal of 25212379 is 97321252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25212379 - 2³ = 25212371 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25212379.

It is not a weakly prime, because it can be changed into another prime (25212371) 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 as a sum of consecutive naturals, namely, 12606189 + 12606190.

It is an arithmetic number, because the mean of its divisors is an integer number (12606190).

Almost surely, 2^25212379 is an apocalyptic number.

25212379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25212379 is an equidigital number, since it uses as much as digits as its factorization.

25212379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 25212379 is about 5021.1929857356. The cubic root of 25212379 is about 293.2274401117.

It can be divided in two parts, 2521 and 2379, that added together give a square (4900 = 70²).

The spelling of 25212379 in words is "twenty-five million, two hundred twelve thousand, three hundred seventy-nine".