22243001553 has 24 divisors (see below), whose sum is σ = 32932730376. Its totient is φ = 14458060800.

The previous prime is 22243001507. The next prime is 22243001563. The reversal of 22243001553 is 35510034222.

It is a happy number.

22243001553 is a `hidden beast` number, since 222 + 430 + 0 + 1 + 5 + 5 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7228910529 + 15014091024 = 85023^2 + 122532^2 .

It is not a de Polignac number, because 22243001553 - 2¹³ = 22242993361 is a prime.

It is a super-2 number, since 2×22243001553² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22243001503) 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, 608433 + ... + 643953.

It is an arithmetic number, because the mean of its divisors is an integer number (1372197099).

Almost surely, 2^22243001553 is an apocalyptic number.

It is an amenable number.

22243001553 is a deficient number, since it is larger than the sum of its proper divisors (10689728823).

22243001553 is a wasteful number, since it uses less digits than its factorization.

22243001553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37265 (or 37262 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 22243001553 its reverse (35510034222), we get a palindrome (57753035775).

The spelling of 22243001553 in words is "twenty-two billion, two hundred forty-three million, one thousand, five hundred fifty-three".