22252530 has 32 divisors (see below), whose sum is σ = 53561088. Its totient is φ = 5916800.

The previous prime is 22252519. The next prime is 22252537. The reversal of 22252530 is 3525222.

It is a junction number, because it is equal to n+sod(n) for n = 22252497 and 22252506.

It is not an unprimeable number, because it can be changed into a prime (22252537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12070 + ... + 13790.

It is an arithmetic number, because the mean of its divisors is an integer number (1673784).

Almost surely, 2^22252530 is an apocalyptic number.

22252530 is an abundant number, since it is smaller than the sum of its proper divisors (31308558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22252530 is a wasteful number, since it uses less digits than its factorization.

22252530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22252530 is about 4717.2587378688. The cubic root of 22252530 is about 281.2719765543.

Adding to 22252530 its reverse (3525222), we get a palindrome (25777752).

The spelling of 22252530 in words is "twenty-two million, two hundred fifty-two thousand, five hundred thirty".