25999751 has 2 divisors, whose sum is σ = 25999752. Its totient is φ = 25999750.

The previous prime is 25999717. The next prime is 25999807. The reversal of 25999751 is 15799952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25999751 - 2¹⁴ = 25983367 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 25999696 and 25999705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25999711) 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, 12999875 + 12999876.

It is an arithmetic number, because the mean of its divisors is an integer number (12999876).

Almost surely, 2^25999751 is an apocalyptic number.

25999751 is a deficient number, since it is larger than the sum of its proper divisors (1).

25999751 is an equidigital number, since it uses as much as digits as its factorization.

25999751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 255150, while the sum is 47.

The square root of 25999751 is about 5098.9950970755. The cubic root of 25999751 is about 296.2486611178.

The spelling of 25999751 in words is "twenty-five million, nine hundred ninety-nine thousand, seven hundred fifty-one".