5540223231 has 32 divisors (see below), whose sum is σ = 8436729600. Its totient is φ = 3590606880.

The previous prime is 5540223229. The next prime is 5540223239. The reversal of 5540223231 is 1323220455.

It is a happy number.

5540223231 is a `hidden beast` number, since 5 + 5 + 402 + 23 + 231 = 666.

5540223231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5540223231 - 2¹ = 5540223229 is a prime.

It is a super-3 number, since 3×5540223231³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 5540223195 and 5540223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540223239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2335476 + ... + 2337846.

It is an arithmetic number, because the mean of its divisors is an integer number (263647800).

Almost surely, 2^5540223231 is an apocalyptic number.

5540223231 is a deficient number, since it is larger than the sum of its proper divisors (2896506369).

5540223231 is a wasteful number, since it uses less digits than its factorization.

5540223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756 (or 4750 counting only the distinct ones).

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

The square root of 5540223231 is about 74432.6758285634. The cubic root of 5540223231 is about 1769.4668115348.

Adding to 5540223231 its reverse (1323220455), we get a palindrome (6863443686).

The spelling of 5540223231 in words is "five billion, five hundred forty million, two hundred twenty-three thousand, two hundred thirty-one".