5571221523 has 32 divisors (see below), whose sum is σ = 8814888960. Its totient is φ = 3062344320.

The previous prime is 5571221507. The next prime is 5571221549. The reversal of 5571221523 is 3251221755.

It is not a de Polignac number, because 5571221523 - 2⁴ = 5571221507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5571221503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148161 + ... + 181917.

It is an arithmetic number, because the mean of its divisors is an integer number (275465280).

Almost surely, 2^5571221523 is an apocalyptic number.

5571221523 is a deficient number, since it is larger than the sum of its proper divisors (3243667437).

5571221523 is a wasteful number, since it uses less digits than its factorization.

5571221523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34067.

The product of its digits is 21000, while the sum is 33.

The square root of 5571221523 is about 74640.6157731834. The cubic root of 5571221523 is about 1772.7608104039.

The spelling of 5571221523 in words is "five billion, five hundred seventy-one million, two hundred twenty-one thousand, five hundred twenty-three".