25222436 has 12 divisors (see below), whose sum is σ = 44432640. Its totient is φ = 12527400.

The previous prime is 25222433. The next prime is 25222451. The reversal of 25222436 is 63422252.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25222433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20276 + ... + 21483.

It is an arithmetic number, because the mean of its divisors is an integer number (3702720).

Almost surely, 2^25222436 is an apocalyptic number.

It is an amenable number.

25222436 is a deficient number, since it is larger than the sum of its proper divisors (19210204).

25222436 is a wasteful number, since it uses less digits than its factorization.

25222436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41914 (or 41912 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 25222436 is about 5022.1943411222. The cubic root of 25222436 is about 293.2664235590.

Adding to 25222436 its reverse (63422252), we get a palindrome (88644688).

The spelling of 25222436 in words is "twenty-five million, two hundred twenty-two thousand, four hundred thirty-six".