5221661503 has 16 divisors (see below), whose sum is σ = 5780756160. Its totient is φ = 4691416576.

The previous prime is 5221661461. The next prime is 5221661531. The reversal of 5221661503 is 3051661225.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5221661503 is a prime.

It is a super-3 number, since 3×5221661503³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221661303) 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, 185901 + ... + 212137.

It is an arithmetic number, because the mean of its divisors is an integer number (361297260).

Almost surely, 2^5221661503 is an apocalyptic number.

5221661503 is a deficient number, since it is larger than the sum of its proper divisors (559094657).

5221661503 is a wasteful number, since it uses less digits than its factorization.

5221661503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26786.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 5221661503 is about 72261.0649174229. The cubic root of 5221661503 is about 1734.8805242912.

The spelling of 5221661503 in words is "five billion, two hundred twenty-one million, six hundred sixty-one thousand, five hundred three".