5521021143 has 16 divisors (see below), whose sum is σ = 8032080000. Its totient is φ = 3345446880.

The previous prime is 5521021127. The next prime is 5521021157. The reversal of 5521021143 is 3411201255.

It is a happy number.

It is not a de Polignac number, because 5521021143 - 2⁴ = 5521021127 is a prime.

It is a super-2 number, since 2×5521021143² = 60963348922906052898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521020143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213108 + ... + 237606.

It is an arithmetic number, because the mean of its divisors is an integer number (502005000).

Almost surely, 2^5521021143 is an apocalyptic number.

5521021143 is a deficient number, since it is larger than the sum of its proper divisors (2511058857).

5521021143 is a wasteful number, since it uses less digits than its factorization.

5521021143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31342.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 5521021143 is about 74303.5742276238. The cubic root of 5521021143 is about 1767.4201558680.

Adding to 5521021143 its reverse (3411201255), we get a palindrome (8932222398).

The spelling of 5521021143 in words is "five billion, five hundred twenty-one million, twenty-one thousand, one hundred forty-three".