25715958 has 8 divisors (see below), whose sum is σ = 51431928. Its totient is φ = 8571984.

The previous prime is 25715947. The next prime is 25715959. The reversal of 25715958 is 85951752.

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

25715958 is an admirable number.

It is a super-2 number, since 2×25715958² = 1322620991715528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142991 + ... + 2143002.

It is an arithmetic number, because the mean of its divisors is an integer number (6428991).

Almost surely, 2^25715958 is an apocalyptic number.

25715958 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25715958 is a wasteful number, since it uses less digits than its factorization.

25715958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285998.

The product of its digits is 126000, while the sum is 42.

The square root of 25715958 is about 5071.0904152855. The cubic root of 25715958 is about 295.1668423257.

The spelling of 25715958 in words is "twenty-five million, seven hundred fifteen thousand, nine hundred fifty-eight".