25222042 has 8 divisors (see below), whose sum is σ = 37943136. Its totient is φ = 12574332.

The previous prime is 25222031. The next prime is 25222051. The reversal of 25222042 is 24022252.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17478 + ... + 18865.

It is an arithmetic number, because the mean of its divisors is an integer number (4742892).

Almost surely, 2^25222042 is an apocalyptic number.

25222042 is a deficient number, since it is larger than the sum of its proper divisors (12721094).

25222042 is a wasteful number, since it uses less digits than its factorization.

25222042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36692.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 25222042 is about 5022.1551150875. The cubic root of 25222042 is about 293.2648965115.

Adding to 25222042 its reverse (24022252), we get a palindrome (49244294).

The spelling of 25222042 in words is "twenty-five million, two hundred twenty-two thousand, forty-two".