22125537 has 24 divisors (see below), whose sum is σ = 37706240. Its totient is φ = 12234240.

The previous prime is 22125511. The next prime is 22125541. The reversal of 22125537 is 73552122.

22125537 is a `hidden beast` number, since 2 + 2 + 125 + 537 = 666.

It is not a de Polignac number, because 22125537 - 2¹⁰ = 22124513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22125537.

It is not an unprimeable number, because it can be changed into a prime (22125437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3712 + ... + 7617.

Almost surely, 2^22125537 is an apocalyptic number.

It is an amenable number.

22125537 is a deficient number, since it is larger than the sum of its proper divisors (15580703).

22125537 is a wasteful number, since it uses less digits than its factorization.

22125537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11373 (or 11370 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 22125537 is about 4703.7790126663. The cubic root of 22125537 is about 280.7358916277.

Adding to 22125537 its reverse (73552122), we get a palindrome (95677659).

The spelling of 22125537 in words is "twenty-two million, one hundred twenty-five thousand, five hundred thirty-seven".