25486998 has 16 divisors (see below), whose sum is σ = 52732080. Its totient is φ = 8202656.

The previous prime is 25486987. The next prime is 25487009. The reversal of 25486998 is 89968452.

It is an interprime number because it is at equal distance from previous prime (25486987) and next prime (25487009).

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 25486998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73065 + ... + 73412.

It is an arithmetic number, because the mean of its divisors is an integer number (3295755).

Almost surely, 2^25486998 is an apocalyptic number.

25486998 is an abundant number, since it is smaller than the sum of its proper divisors (27245082).

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

25486998 is a wasteful number, since it uses less digits than its factorization.

25486998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146511.

The product of its digits is 1244160, while the sum is 51.

The square root of 25486998 is about 5048.4649151995. The cubic root of 25486998 is about 294.2882313768.

The spelling of 25486998 in words is "twenty-five million, four hundred eighty-six thousand, nine hundred ninety-eight".