22010550 has 48 divisors (see below), whose sum is σ = 57466560. Its totient is φ = 5559840.

The previous prime is 22010543. The next prime is 22010551. The reversal of 22010550 is 5501022.

It is a super-2 number, since 2×22010550² = 968928622605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1012 + ... + 6711.

It is an arithmetic number, because the mean of its divisors is an integer number (1197220).

Almost surely, 2^22010550 is an apocalyptic number.

22010550 is an abundant number, since it is smaller than the sum of its proper divisors (35456010).

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

22010550 is a wasteful number, since it uses less digits than its factorization.

22010550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757 (or 7752 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 22010550 is about 4691.5402588063. The cubic root of 22010550 is about 280.2487160820.

Adding to 22010550 its reverse (5501022), we get a palindrome (27511572).

The spelling of 22010550 in words is "twenty-two million, ten thousand, five hundred fifty".