22655537 has 4 divisors (see below), whose sum is σ = 22665216. Its totient is φ = 22645860.

The previous prime is 22655531. The next prime is 22655557. The reversal of 22655537 is 73555622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22655537 - 2¹² = 22651441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22655497 and 22655506.

It is not an unprimeable number, because it can be changed into a prime (22655531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112 + ... + 6822.

It is an arithmetic number, because the mean of its divisors is an integer number (5666304).

Almost surely, 2^22655537 is an apocalyptic number.

It is an amenable number.

22655537 is a deficient number, since it is larger than the sum of its proper divisors (9679).

22655537 is an equidigital number, since it uses as much as digits as its factorization.

22655537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9678.

The product of its digits is 63000, while the sum is 35.

The square root of 22655537 is about 4759.7832933864. The cubic root of 22655537 is about 282.9598306473.

The spelling of 22655537 in words is "twenty-two million, six hundred fifty-five thousand, five hundred thirty-seven".