5021661223 has 2 divisors, whose sum is σ = 5021661224. Its totient is φ = 5021661222.

The previous prime is 5021661193. The next prime is 5021661241. The reversal of 5021661223 is 3221661205.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5021661223 - 2²⁹ = 4484790311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5021661191 and 5021661200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5021661023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510830611 + 2510830612.

It is an arithmetic number, because the mean of its divisors is an integer number (2510830612).

Almost surely, 2^5021661223 is an apocalyptic number.

5021661223 is a deficient number, since it is larger than the sum of its proper divisors (1).

5021661223 is an equidigital number, since it uses as much as digits as its factorization.

5021661223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5021661223 is about 70863.6805634593. The cubic root of 5021661223 is about 1712.4417339865.

The spelling of 5021661223 in words is "five billion, twenty-one million, six hundred sixty-one thousand, two hundred twenty-three".