5607191221 has 2 divisors, whose sum is σ = 5607191222. Its totient is φ = 5607191220.

The previous prime is 5607191197. The next prime is 5607191257. The reversal of 5607191221 is 1221917065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5586815025 + 20376196 = 74745^2 + 4514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5607191221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5607191281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803595610 + 2803595611.

It is an arithmetic number, because the mean of its divisors is an integer number (2803595611).

Almost surely, 2^5607191221 is an apocalyptic number.

It is an amenable number.

5607191221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5607191221 is an equidigital number, since it uses as much as digits as its factorization.

5607191221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 5607191221 is about 74881.1806864716. The cubic root of 5607191221 is about 1776.5678109508.

The spelling of 5607191221 in words is "five billion, six hundred seven million, one hundred ninety-one thousand, two hundred twenty-one".