25230242 has 4 divisors (see below), whose sum is σ = 37845366. Its totient is φ = 12615120.

The previous prime is 25230239. The next prime is 25230253. The reversal of 25230242 is 24203252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14661241 + 10569001 = 3829^2 + 3251^2 .

It is a super-2 number, since 2×25230242² = 1273130222757128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307559 + ... + 6307562.

Almost surely, 2^25230242 is an apocalyptic number.

25230242 is a deficient number, since it is larger than the sum of its proper divisors (12615124).

25230242 is a wasteful number, since it uses less digits than its factorization.

25230242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12615123.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25230242 is about 5022.9714313342. The cubic root of 25230242 is about 293.2966744248.

Adding to 25230242 its reverse (24203252), we get a palindrome (49433494).

The spelling of 25230242 in words is "twenty-five million, two hundred thirty thousand, two hundred forty-two".