25748939 has 2 divisors, whose sum is σ = 25748940. Its totient is φ = 25748938.

The previous prime is 25748927. The next prime is 25748953. The reversal of 25748939 is 93984752.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25748939 - 2⁴ = 25748923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25748893 and 25748902.

It is not a weakly prime, because it can be changed into another prime (25748909) 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, 12874469 + 12874470.

It is an arithmetic number, because the mean of its divisors is an integer number (12874470).

Almost surely, 2^25748939 is an apocalyptic number.

25748939 is a deficient number, since it is larger than the sum of its proper divisors (1).

25748939 is an equidigital number, since it uses as much as digits as its factorization.

25748939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 25748939 is about 5074.3412380328. The cubic root of 25748939 is about 295.2929733307.

The spelling of 25748939 in words is "twenty-five million, seven hundred forty-eight thousand, nine hundred thirty-nine".