25851479 has 2 divisors, whose sum is σ = 25851480. Its totient is φ = 25851478.

The previous prime is 25851461. The next prime is 25851547. The reversal of 25851479 is 97415852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25851479 - 2⁸ = 25851223 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 (25851779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12925739 + 12925740.

It is an arithmetic number, because the mean of its divisors is an integer number (12925740).

Almost surely, 2^25851479 is an apocalyptic number.

25851479 is a deficient number, since it is larger than the sum of its proper divisors (1).

25851479 is an equidigital number, since it uses as much as digits as its factorization.

25851479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 25851479 is about 5084.4349735246. The cubic root of 25851479 is about 295.6844358860.

The spelling of 25851479 in words is "twenty-five million, eight hundred fifty-one thousand, four hundred seventy-nine".