25772597 has 2 divisors, whose sum is σ = 25772598. Its totient is φ = 25772596.

The previous prime is 25772587. The next prime is 25772623. The reversal of 25772597 is 79527752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25664356 + 108241 = 5066^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 25772597 - 2⁶ = 25772533 is a prime.

It is a super-2 number, since 2×25772597² = 1328453512248818, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25772567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886298 + 12886299.

It is an arithmetic number, because the mean of its divisors is an integer number (12886299).

Almost surely, 2^25772597 is an apocalyptic number.

It is an amenable number.

25772597 is a deficient number, since it is larger than the sum of its proper divisors (1).

25772597 is an equidigital number, since it uses as much as digits as its factorization.

25772597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308700, while the sum is 44.

The square root of 25772597 is about 5076.6718428514. The cubic root of 25772597 is about 295.3833835631.

The spelling of 25772597 in words is "twenty-five million, seven hundred seventy-two thousand, five hundred ninety-seven".