25081693 has 8 divisors (see below), whose sum is σ = 30869888. Its totient is φ = 19844784.

The previous prime is 25081657. The next prime is 25081703. The reversal of 25081693 is 39618052.

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 25081693 - 2⁹ = 25081181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25081643) 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, 137721 + ... + 137902.

It is an arithmetic number, because the mean of its divisors is an integer number (3858736).

Almost surely, 2^25081693 is an apocalyptic number.

It is an amenable number.

25081693 is a deficient number, since it is larger than the sum of its proper divisors (5788195).

25081693 is a wasteful number, since it uses less digits than its factorization.

25081693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275643.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25081693 is about 5008.1626371355. The cubic root of 25081693 is about 292.7199232396.

The spelling of 25081693 in words is "twenty-five million, eighty-one thousand, six hundred ninety-three".