22065537 has 16 divisors (see below), whose sum is σ = 31808448. Its totient is φ = 13525440.

The previous prime is 22065481. The next prime is 22065553. The reversal of 22065537 is 73556022.

It is not a de Polignac number, because 22065537 - 2¹⁶ = 22000001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22065577) 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, 10462 + ... + 12392.

It is an arithmetic number, because the mean of its divisors is an integer number (1988028).

Almost surely, 2^22065537 is an apocalyptic number.

It is an amenable number.

22065537 is a deficient number, since it is larger than the sum of its proper divisors (9742911).

22065537 is a wasteful number, since it uses less digits than its factorization.

22065537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 22065537 is about 4697.3968322891. The cubic root of 22065537 is about 280.4818954955.

The spelling of 22065537 in words is "twenty-two million, sixty-five thousand, five hundred thirty-seven".