25717393 has 8 divisors (see below), whose sum is σ = 29153600. Its totient is φ = 22489488.

The previous prime is 25717361. The next prime is 25717399. The reversal of 25717393 is 39371752.

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 25717393 - 2⁵ = 25717361 is a prime.

It is a super-2 number, since 2×25717393² = 1322768605432898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25717399) 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, 51813 + ... + 52306.

It is an arithmetic number, because the mean of its divisors is an integer number (3644200).

Almost surely, 2^25717393 is an apocalyptic number.

It is an amenable number.

25717393 is a deficient number, since it is larger than the sum of its proper divisors (3436207).

25717393 is a wasteful number, since it uses less digits than its factorization.

25717393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104151.

The product of its digits is 39690, while the sum is 37.

The square root of 25717393 is about 5071.2319016192. The cubic root of 25717393 is about 295.1723325164.

The spelling of 25717393 in words is "twenty-five million, seven hundred seventeen thousand, three hundred ninety-three".