25722079 has 2 divisors, whose sum is σ = 25722080. Its totient is φ = 25722078.

The previous prime is 25722031. The next prime is 25722097. The reversal of 25722079 is 97022752.

Together with next prime (25722097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25722079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25732079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861039 + 12861040.

It is an arithmetic number, because the mean of its divisors is an integer number (12861040).

Almost surely, 2^25722079 is an apocalyptic number.

25722079 is a deficient number, since it is larger than the sum of its proper divisors (1).

25722079 is an equidigital number, since it uses as much as digits as its factorization.

25722079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 25722079 is about 5071.6938984919. The cubic root of 25722079 is about 295.1902593406.

The spelling of 25722079 in words is "twenty-five million, seven hundred twenty-two thousand, seventy-nine".