25102997 has 2 divisors, whose sum is σ = 25102998. Its totient is φ = 25102996.

The previous prime is 25102993. The next prime is 25103003. The reversal of 25102997 is 79920152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 758641 = 4934^2 + 871^2 .

It is a cyclic number.

It is not a de Polignac number, because 25102997 - 2² = 25102993 is a prime.

It is a Chen prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25102991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12551498 + 12551499.

It is an arithmetic number, because the mean of its divisors is an integer number (12551499).

Almost surely, 2^25102997 is an apocalyptic number.

It is an amenable number.

25102997 is a deficient number, since it is larger than the sum of its proper divisors (1).

25102997 is an equidigital number, since it uses as much as digits as its factorization.

25102997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 25102997 is about 5010.2891134145. The cubic root of 25102997 is about 292.8027770360.

The spelling of 25102997 in words is "twenty-five million, one hundred two thousand, nine hundred ninety-seven".