25533122 has 4 divisors (see below), whose sum is σ = 38299686. Its totient is φ = 12766560.

The previous prime is 25533077. The next prime is 25533139. The reversal of 25533122 is 22133552.

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., 21169201 + 4363921 = 4601^2 + 2089^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6383279 + ... + 6383282.

Almost surely, 2^25533122 is an apocalyptic number.

25533122 is a deficient number, since it is larger than the sum of its proper divisors (12766564).

25533122 is a wasteful number, since it uses less digits than its factorization.

25533122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12766563.

The product of its digits is 1800, while the sum is 23.

The square root of 25533122 is about 5053.0309716051. The cubic root of 25533122 is about 294.4656495573.

Adding to 25533122 its reverse (22133552), we get a palindrome (47666674).

The spelling of 25533122 in words is "twenty-five million, five hundred thirty-three thousand, one hundred twenty-two".