25197893 has 8 divisors (see below), whose sum is σ = 30491712. Its totient is φ = 20327616.

The previous prime is 25197889. The next prime is 25197899. The reversal of 25197893 is 39879152.

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 25197893 - 2² = 25197889 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 (25197899) 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 7 ways as a sum of consecutive naturals, for example, 105755 + ... + 105992.

It is an arithmetic number, because the mean of its divisors is an integer number (3811464).

Almost surely, 2^25197893 is an apocalyptic number.

It is an amenable number.

25197893 is a deficient number, since it is larger than the sum of its proper divisors (5293819).

25197893 is a wasteful number, since it uses less digits than its factorization.

25197893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211771.

The product of its digits is 136080, while the sum is 44.

The square root of 25197893 is about 5019.7502925942. The cubic root of 25197893 is about 293.1712705283.

The spelling of 25197893 in words is "twenty-five million, one hundred ninety-seven thousand, eight hundred ninety-three".