25265242 has 4 divisors (see below), whose sum is σ = 37897866. Its totient is φ = 12632620.

The previous prime is 25265237. The next prime is 25265243. The reversal of 25265242 is 24256252.

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., 24492601 + 772641 = 4949^2 + 879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25265242.

It is not an unprimeable number, because it can be changed into a prime (25265243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6316309 + ... + 6316312.

Almost surely, 2^25265242 is an apocalyptic number.

25265242 is a deficient number, since it is larger than the sum of its proper divisors (12632624).

25265242 is a wasteful number, since it uses less digits than its factorization.

25265242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12632623.

The product of its digits is 9600, while the sum is 28.

The square root of 25265242 is about 5026.4542174380. The cubic root of 25265242 is about 293.4322344994.

The spelling of 25265242 in words is "twenty-five million, two hundred sixty-five thousand, two hundred forty-two".