25203242 has 4 divisors (see below), whose sum is σ = 37804866. Its totient is φ = 12601620.

The previous prime is 25203209. The next prime is 25203257. The reversal of 25203242 is 24230252.

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., 13920361 + 11282881 = 3731^2 + 3359^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6300809 + ... + 6300812.

Almost surely, 2^25203242 is an apocalyptic number.

25203242 is a deficient number, since it is larger than the sum of its proper divisors (12601624).

25203242 is a wasteful number, since it uses less digits than its factorization.

25203242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601623.

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

The square root of 25203242 is about 5020.2830597487. The cubic root of 25203242 is about 293.1920138258.

Adding to 25203242 its reverse (24230252), we get a palindrome (49433494).

The spelling of 25203242 in words is "twenty-five million, two hundred three thousand, two hundred forty-two".