25194243 has 8 divisors (see below), whose sum is σ = 34750800. Its totient is φ = 16216928.

The previous prime is 25194217. The next prime is 25194263. The reversal of 25194243 is 34249152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25194243 - 2¹⁶ = 25128707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25194243.

It is not an unprimeable number, because it can be changed into a prime (25194263) 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, 144708 + ... + 144881.

It is an arithmetic number, because the mean of its divisors is an integer number (4343850).

Almost surely, 2^25194243 is an apocalyptic number.

25194243 is a deficient number, since it is larger than the sum of its proper divisors (9556557).

25194243 is a wasteful number, since it uses less digits than its factorization.

25194243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289621.

The product of its digits is 8640, while the sum is 30.

The square root of 25194243 is about 5019.3867155261. The cubic root of 25194243 is about 293.1571142281.

The spelling of 25194243 in words is "twenty-five million, one hundred ninety-four thousand, two hundred forty-three".