25494198 has 16 divisors (see below), whose sum is σ = 51332400. Its totient is φ = 8440736.

The previous prime is 25494191. The next prime is 25494199. The reversal of 25494198 is 89149452.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25494191) 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, 13365 + ... + 15152.

It is an arithmetic number, because the mean of its divisors is an integer number (3208275).

Almost surely, 2^25494198 is an apocalyptic number.

25494198 is an abundant number, since it is smaller than the sum of its proper divisors (25838202).

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

25494198 is a wasteful number, since it uses less digits than its factorization.

25494198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28671.

The product of its digits is 103680, while the sum is 42.

The square root of 25494198 is about 5049.1779528949. The cubic root of 25494198 is about 294.3159406134.

The spelling of 25494198 in words is "twenty-five million, four hundred ninety-four thousand, one hundred ninety-eight".