25690693 has 8 divisors (see below), whose sum is σ = 29397888. Its totient is φ = 21992784.

The previous prime is 25690667. The next prime is 25690733. The reversal of 25690693 is 39609652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25690693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25690633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5280 + ... + 8902.

It is an arithmetic number, because the mean of its divisors is an integer number (3674736).

Almost surely, 2^25690693 is an apocalyptic number.

It is an amenable number.

25690693 is a deficient number, since it is larger than the sum of its proper divisors (3707195).

25690693 is a wasteful number, since it uses less digits than its factorization.

25690693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 25690693 is about 5068.5987215403. The cubic root of 25690693 is about 295.0701470647.

The spelling of 25690693 in words is "twenty-five million, six hundred ninety thousand, six hundred ninety-three".