22000537 has 8 divisors (see below), whose sum is σ = 24940160. Its totient is φ = 19239120.

The previous prime is 22000529. The next prime is 22000553. The reversal of 22000537 is 73500022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22000537 - 2³ = 22000529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (22000037) 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, 44289 + ... + 44782.

It is an arithmetic number, because the mean of its divisors is an integer number (3117520).

Almost surely, 2^22000537 is an apocalyptic number.

It is an amenable number.

22000537 is a deficient number, since it is larger than the sum of its proper divisors (2939623).

22000537 is a wasteful number, since it uses less digits than its factorization.

22000537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89103.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 22000537 is about 4690.4730038665. The cubic root of 22000537 is about 280.2062128881.

Adding to 22000537 its reverse (73500022), we get a palindrome (95500559).

The spelling of 22000537 in words is "twenty-two million, five hundred thirty-seven", and thus it is an aban number.