25385297 has 4 divisors (see below), whose sum is σ = 29011776. Its totient is φ = 21758820.

The previous prime is 25385291. The next prime is 25385299. The reversal of 25385297 is 79258352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25385297 - 2¹⁰ = 25384273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25385291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1813229 + ... + 1813242.

It is an arithmetic number, because the mean of its divisors is an integer number (7252944).

Almost surely, 2^25385297 is an apocalyptic number.

It is an amenable number.

25385297 is a deficient number, since it is larger than the sum of its proper divisors (3626479).

25385297 is an equidigital number, since it uses as much as digits as its factorization.

25385297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626478.

The product of its digits is 151200, while the sum is 41.

The square root of 25385297 is about 5038.3823792960. The cubic root of 25385297 is about 293.8962759034.

The spelling of 25385297 in words is "twenty-five million, three hundred eighty-five thousand, two hundred ninety-seven".