25396497 has 40 divisors (see below), whose sum is σ = 44326656. Its totient is φ = 14188608.

The previous prime is 25396493. The next prime is 25396513. The reversal of 25396497 is 79469352.

It is a happy number.

It is not a de Polignac number, because 25396497 - 2² = 25396493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25396493) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26173 + ... + 27125.

Almost surely, 2^25396497 is an apocalyptic number.

25396497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25396497 is a deficient number, since it is larger than the sum of its proper divisors (18930159).

25396497 is an equidigital number, since it uses as much as digits as its factorization.

25396497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1010 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 25396497 is about 5039.4937245719. The cubic root of 25396497 is about 293.9394919209.

The spelling of 25396497 in words is "twenty-five million, three hundred ninety-six thousand, four hundred ninety-seven".