25704897 has 8 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 17086800.

The previous prime is 25704871. The next prime is 25704919. The reversal of 25704897 is 79840752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25704897 - 2⁸ = 25704641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25704097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11229 + ... + 13322.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600).

Almost surely, 2^25704897 is an apocalyptic number.

It is an amenable number.

25704897 is a deficient number, since it is larger than the sum of its proper divisors (8667903).

25704897 is a wasteful number, since it uses less digits than its factorization.

25704897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24903.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 25704897 is about 5069.9997041420. Note that the first 3 decimals coincide. The cubic root of 25704897 is about 295.1245170032.

The spelling of 25704897 in words is "twenty-five million, seven hundred four thousand, eight hundred ninety-seven".