25855798 has 16 divisors (see below), whose sum is σ = 40440960. Its totient is φ = 12384000.

The previous prime is 25855787. The next prime is 25855799. The reversal of 25855798 is 89755852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25855799) 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, 4198 + ... + 8326.

It is an arithmetic number, because the mean of its divisors is an integer number (2527560).

Almost surely, 2^25855798 is an apocalyptic number.

25855798 is a deficient number, since it is larger than the sum of its proper divisors (14585162).

25855798 is a wasteful number, since it uses less digits than its factorization.

25855798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its digits is 1008000, while the sum is 49.

The square root of 25855798 is about 5084.8596834131. The cubic root of 25855798 is about 295.7009016101.

The spelling of 25855798 in words is "twenty-five million, eight hundred fifty-five thousand, seven hundred ninety-eight".