25703479 has 2 divisors, whose sum is σ = 25703480. Its totient is φ = 25703478.

The previous prime is 25703477. The next prime is 25703497. The reversal of 25703479 is 97430752.

Together with next prime (25703497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25703479 - 2¹ = 25703477 is a prime.

Together with 25703477, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25703477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12851739 + 12851740.

It is an arithmetic number, because the mean of its divisors is an integer number (12851740).

Almost surely, 2^25703479 is an apocalyptic number.

25703479 is a deficient number, since it is larger than the sum of its proper divisors (1).

25703479 is an equidigital number, since it uses as much as digits as its factorization.

25703479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 25703479 is about 5069.8598599961. The cubic root of 25703479 is about 295.1190900961.

The spelling of 25703479 in words is "twenty-five million, seven hundred three thousand, four hundred seventy-nine".