5220156611 has 4 divisors (see below), whose sum is σ = 5220577824. Its totient is φ = 5219735400.

The previous prime is 5220156593. The next prime is 5220156649. The reversal of 5220156611 is 1166510225.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5220156611 - 2⁶ = 5220156547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5220156671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191435 + ... + 216996.

It is an arithmetic number, because the mean of its divisors is an integer number (1305144456).

Almost surely, 2^5220156611 is an apocalyptic number.

5220156611 is a deficient number, since it is larger than the sum of its proper divisors (421213).

5220156611 is a wasteful number, since it uses less digits than its factorization.

5220156611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421212.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 5220156611 is about 72250.6512842618. The cubic root of 5220156611 is about 1734.7138430746.

Adding to 5220156611 its reverse (1166510225), we get a palindrome (6386666836).

The spelling of 5220156611 in words is "five billion, two hundred twenty million, one hundred fifty-six thousand, six hundred eleven".