25377479 has 2 divisors, whose sum is σ = 25377480. Its totient is φ = 25377478.

The previous prime is 25377463. The next prime is 25377491. The reversal of 25377479 is 97477352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25377479 - 2⁴ = 25377463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25377409) 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, 12688739 + 12688740.

It is an arithmetic number, because the mean of its divisors is an integer number (12688740).

Almost surely, 2^25377479 is an apocalyptic number.

25377479 is a deficient number, since it is larger than the sum of its proper divisors (1).

25377479 is an equidigital number, since it uses as much as digits as its factorization.

25377479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 44.

The square root of 25377479 is about 5037.6064753015. The cubic root of 25377479 is about 293.8661020459.

The spelling of 25377479 in words is "twenty-five million, three hundred seventy-seven thousand, four hundred seventy-nine".