25302997 has 2 divisors, whose sum is σ = 25302998. Its totient is φ = 25302996.

The previous prime is 25302973. The next prime is 25303001. The reversal of 25302997 is 79920352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19280881 + 6022116 = 4391^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 25302997 - 2⁷ = 25302869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25302097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12651498 + 12651499.

It is an arithmetic number, because the mean of its divisors is an integer number (12651499).

Almost surely, 2^25302997 is an apocalyptic number.

It is an amenable number.

25302997 is a deficient number, since it is larger than the sum of its proper divisors (1).

25302997 is an equidigital number, since it uses as much as digits as its factorization.

25302997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 25302997 is about 5030.2084449852. The cubic root of 25302997 is about 293.5783247975.

The spelling of 25302997 in words is "twenty-five million, three hundred two thousand, nine hundred ninety-seven".