5221023511 has 4 divisors (see below), whose sum is σ = 5695662024. Its totient is φ = 4746385000.

The previous prime is 5221023487. The next prime is 5221023541. The reversal of 5221023511 is 1153201225.

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 5221023511 - 2⁷ = 5221023383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221023541) 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, 237319240 + ... + 237319261.

It is an arithmetic number, because the mean of its divisors is an integer number (1423915506).

Almost surely, 2^5221023511 is an apocalyptic number.

5221023511 is a deficient number, since it is larger than the sum of its proper divisors (474638513).

5221023511 is a wasteful number, since it uses less digits than its factorization.

5221023511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474638512.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 5221023511 is about 72256.6502890910. The cubic root of 5221023511 is about 1734.8098644717.

Adding to 5221023511 its reverse (1153201225), we get a palindrome (6374224736).

The spelling of 5221023511 in words is "five billion, two hundred twenty-one million, twenty-three thousand, five hundred eleven".