25194442 has 48 divisors (see below), whose sum is σ = 49512960. Its totient is φ = 9361152.

The previous prime is 25194439. The next prime is 25194469. The reversal of 25194442 is 24449152.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52359 + ... + 52837.

It is an arithmetic number, because the mean of its divisors is an integer number (1031520).

Almost surely, 2^25194442 is an apocalyptic number.

25194442 is a deficient number, since it is larger than the sum of its proper divisors (24318518).

25194442 is a wasteful number, since it uses less digits than its factorization.

25194442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 518 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 25194442 is about 5019.4065386259. The cubic root of 25194442 is about 293.1578860726.

The spelling of 25194442 in words is "twenty-five million, one hundred ninety-four thousand, four hundred forty-two".