25104397 has 2 divisors, whose sum is σ = 25104398. Its totient is φ = 25104396.

The previous prime is 25104379. The next prime is 25104403. The reversal of 25104397 is 79340152.

Together with previous prime (25104379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20967241 + 4137156 = 4579^2 + 2034^2 .

It is a cyclic number.

It is not a de Polignac number, because 25104397 - 2¹¹ = 25102349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25104307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12552198 + 12552199.

It is an arithmetic number, because the mean of its divisors is an integer number (12552199).

Almost surely, 2^25104397 is an apocalyptic number.

It is an amenable number.

25104397 is a deficient number, since it is larger than the sum of its proper divisors (1).

25104397 is an equidigital number, since it uses as much as digits as its factorization.

25104397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 25104397 is about 5010.4288239631. The cubic root of 25104397 is about 292.8082201612.

The spelling of 25104397 in words is "twenty-five million, one hundred four thousand, three hundred ninety-seven".