25697345 has 8 divisors (see below), whose sum is σ = 30891264. Its totient is φ = 20521584.

The previous prime is 25697333. The next prime is 25697369. The reversal of 25697345 is 54379652.

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

It is a cyclic number.

It is not a de Polignac number, because 25697345 - 2⁶ = 25697281 is a prime.

It is a super-3 number, since 3×25697345³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (3861408).

Almost surely, 2^25697345 is an apocalyptic number.

It is an amenable number.

25697345 is a deficient number, since it is larger than the sum of its proper divisors (5193919).

25697345 is an equidigital number, since it uses as much as digits as its factorization.

25697345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9079.

The product of its digits is 226800, while the sum is 41.

The square root of 25697345 is about 5069.2548762121. The cubic root of 25697345 is about 295.0956120224.

The spelling of 25697345 in words is "twenty-five million, six hundred ninety-seven thousand, three hundred forty-five".