25072242 has 32 divisors (see below), whose sum is σ = 55749120. Its totient is φ = 7464960.

The previous prime is 25072219. The next prime is 25072253. The reversal of 25072242 is 24227052.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2767 + ... + 7602.

It is an arithmetic number, because the mean of its divisors is an integer number (1742160).

Almost surely, 2^25072242 is an apocalyptic number.

25072242 is an abundant number, since it is smaller than the sum of its proper divisors (30676878).

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

25072242 is a wasteful number, since it uses less digits than its factorization.

25072242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10418.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 25072242 is about 5007.2189886203. The cubic root of 25072242 is about 292.6831521499.

Adding to 25072242 its reverse (24227052), we get a palindrome (49299294).

The spelling of 25072242 in words is "twenty-five million, seventy-two thousand, two hundred forty-two".