25012242 has 12 divisors (see below), whose sum is σ = 54193230. Its totient is φ = 8337408.

The previous prime is 25012241. The next prime is 25012271. The reversal of 25012242 is 24221052.

It can be written as a sum of positive squares in only one way, i.e., 24710841 + 301401 = 4971^2 + 549^2 .

It is a super-2 number, since 2×25012242² = 1251224499733128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1389569 = 25012242 / (2 + 5 + 0 + 1 + 2 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (25012241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694767 + ... + 694802.

Almost surely, 2^25012242 is an apocalyptic number.

25012242 is an abundant number, since it is smaller than the sum of its proper divisors (29180988).

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

25012242 is a wasteful number, since it uses less digits than its factorization.

25012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389577 (or 1389574 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 25012242 is about 5001.2240501701. The cubic root of 25012242 is about 292.4494937998.

Adding to 25012242 its reverse (24221052), we get a palindrome (49233294).

The spelling of 25012242 in words is "twenty-five million, twelve thousand, two hundred forty-two".