22525429 has 4 divisors (see below), whose sum is σ = 22535884. Its totient is φ = 22514976.

The previous prime is 22525427. The next prime is 22525439. The reversal of 22525429 is 92452522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18722929 + 3802500 = 4327^2 + 1950^2 .

It is a cyclic number.

It is not a de Polignac number, because 22525429 - 2¹ = 22525427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22525429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672 + ... + 6745.

It is an arithmetic number, because the mean of its divisors is an integer number (5633971).

Almost surely, 2^22525429 is an apocalyptic number.

It is an amenable number.

22525429 is a deficient number, since it is larger than the sum of its proper divisors (10455).

22525429 is an equidigital number, since it uses as much as digits as its factorization.

22525429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454.

The product of its digits is 14400, while the sum is 31.

The square root of 22525429 is about 4746.0961852874. The cubic root of 22525429 is about 282.4171224240.

The spelling of 22525429 in words is "twenty-two million, five hundred twenty-five thousand, four hundred twenty-nine".