5531221355 has 48 divisors (see below), whose sum is σ = 7625560320. Its totient is φ = 3819288000.

The previous prime is 5531221331. The next prime is 5531221357.

5531221355 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5531221355 - 2⁶ = 5531221291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5531221357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4392716 + ... + 4393974.

It is an arithmetic number, because the mean of its divisors is an integer number (158865840).

Almost surely, 2^5531221355 is an apocalyptic number.

5531221355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5531221355 is a deficient number, since it is larger than the sum of its proper divisors (2094338965).

5531221355 is a wasteful number, since it uses less digits than its factorization.

5531221355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1449 counting only the distinct ones).

The product of its digits is 22500, while the sum is 32.

The square root of 5531221355 is about 74372.1813247400. The cubic root of 5531221355 is about 1768.5079358747.

It can be divided in two parts, 55312 and 21355, that added together give a palindrome (76667).

The spelling of 5531221355 in words is "five billion, five hundred thirty-one million, two hundred twenty-one thousand, three hundred fifty-five".