22522522 has 8 divisors (see below), whose sum is σ = 36855072. Its totient is φ = 10237500.

The previous prime is 22522517. The next prime is 22522553.

22522522 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1023751 = 22522522 / (2 + 2 + 5 + 2 + 2 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 22522493 and 22522502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511854 + ... + 511897.

It is an arithmetic number, because the mean of its divisors is an integer number (4606884).

Almost surely, 2^22522522 is an apocalyptic number.

22522522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22522522 is a deficient number, since it is larger than the sum of its proper divisors (14332550).

22522522 is a wasteful number, since it uses less digits than its factorization.

22522522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023764.

The product of its digits is 1600, while the sum is 22.

The square root of 22522522 is about 4745.7899237113. The cubic root of 22522522 is about 282.4049728678.

It can be divided in two parts, 2252 and 2522, that added together give a palindrome (4774).

The spelling of 22522522 in words is "twenty-two million, five hundred twenty-two thousand, five hundred twenty-two".