25787958 has 16 divisors (see below), whose sum is σ = 58944000. Its totient is φ = 7367976.

The previous prime is 25787953. The next prime is 25787969. The reversal of 25787958 is 85978752.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25787958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25787953) 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, 306958 + ... + 307041.

It is an arithmetic number, because the mean of its divisors is an integer number (3684000).

Almost surely, 2^25787958 is an apocalyptic number.

25787958 is an abundant number, since it is smaller than the sum of its proper divisors (33156042).

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

25787958 is a wasteful number, since it uses less digits than its factorization.

25787958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614011.

The product of its digits is 1411200, while the sum is 51.

The square root of 25787958 is about 5078.1845181127. The cubic root of 25787958 is about 295.4420567732.

The spelling of 25787958 in words is "twenty-five million, seven hundred eighty-seven thousand, nine hundred fifty-eight".