25390751 has 2 divisors, whose sum is σ = 25390752. Its totient is φ = 25390750.

The previous prime is 25390727. The next prime is 25390759. The reversal of 25390751 is 15709352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25390751 - 2²² = 21196447 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 (25390759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12695375 + 12695376.

It is an arithmetic number, because the mean of its divisors is an integer number (12695376).

Almost surely, 2^25390751 is an apocalyptic number.

25390751 is a deficient number, since it is larger than the sum of its proper divisors (1).

25390751 is an equidigital number, since it uses as much as digits as its factorization.

25390751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 25390751 is about 5038.9235953723. The cubic root of 25390751 is about 293.9173221480.

The spelling of 25390751 in words is "twenty-five million, three hundred ninety thousand, seven hundred fifty-one".