22053537 has 24 divisors (see below), whose sum is σ = 34907808. Its totient is φ = 13305600.

The previous prime is 22053503. The next prime is 22053557. The reversal of 22053537 is 73535022.

It is not a de Polignac number, because 22053537 - 2¹¹ = 22051489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22053537.

It is not an unprimeable number, because it can be changed into a prime (22053557) 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, 32433 + ... + 33105.

It is an arithmetic number, because the mean of its divisors is an integer number (1454492).

Almost surely, 2^22053537 is an apocalyptic number.

It is an amenable number.

22053537 is a deficient number, since it is larger than the sum of its proper divisors (12854271).

22053537 is a wasteful number, since it uses less digits than its factorization.

22053537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 22053537 is about 4696.1193553827. The cubic root of 22053537 is about 280.4310410330.

Adding to 22053537 its reverse (73535022), we get a palindrome (95588559).

The spelling of 22053537 in words is "twenty-two million, fifty-three thousand, five hundred thirty-seven".