22240551 has 8 divisors (see below), whose sum is σ = 29680000. Its totient is φ = 14814072.

The previous prime is 22240501. The next prime is 22240553. The reversal of 22240551 is 15504222.

It is a happy number.

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

It is not a de Polignac number, because 22240551 - 2¹³ = 22232359 is a prime.

It is a super-3 number, since 3×22240551³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1950 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (3710000).

Almost surely, 2^22240551 is an apocalyptic number.

22240551 is a deficient number, since it is larger than the sum of its proper divisors (7439449).

22240551 is a wasteful number, since it uses less digits than its factorization.

22240551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22240551 is about 4715.9888676713. The cubic root of 22240551 is about 281.2214959755.

Adding to 22240551 its reverse (15504222), we get a palindrome (37744773).

It can be divided in two parts, 22240 and 551, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 22240551 in words is "twenty-two million, two hundred forty thousand, five hundred fifty-one".