25992198 has 32 divisors (see below), whose sum is σ = 59627520. Its totient is φ = 8384040.

The previous prime is 25992193. The next prime is 25992203. The reversal of 25992198 is 89129952.

It is an interprime number because it is at equal distance from previous prime (25992193) and next prime (25992203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25992191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6090 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (1863360).

Almost surely, 2^25992198 is an apocalyptic number.

25992198 is an abundant number, since it is smaller than the sum of its proper divisors (33635322).

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

25992198 is a wasteful number, since it uses less digits than its factorization.

25992198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15569 (or 15563 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 25992198 is about 5098.2544071476. The cubic root of 25992198 is about 296.2199713194.

The spelling of 25992198 in words is "twenty-five million, nine hundred ninety-two thousand, one hundred ninety-eight".