22522004 has 6 divisors (see below), whose sum is σ = 39413514. Its totient is φ = 11261000.

The previous prime is 22522001. The next prime is 22522007. The reversal of 22522004 is 40022522.

It is an interprime number because it is at equal distance from previous prime (22522001) and next prime (22522007).

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 806404 = 4660^2 + 898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22522001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815247 + ... + 2815254.

It is an arithmetic number, because the mean of its divisors is an integer number (6568919).

Almost surely, 2^22522004 is an apocalyptic number.

It is an amenable number.

22522004 is a deficient number, since it is larger than the sum of its proper divisors (16891510).

22522004 is a wasteful number, since it uses less digits than its factorization.

22522004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630505 (or 5630503 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22522004 is about 4745.7353487105. The cubic root of 22522004 is about 282.4028078217.

Adding to 22522004 its reverse (40022522), we get a palindrome (62544526).

The spelling of 22522004 in words is "twenty-two million, five hundred twenty-two thousand, four".