5651251219 has 2 divisors, whose sum is σ = 5651251220. Its totient is φ = 5651251218.

The previous prime is 5651251217. The next prime is 5651251279. The reversal of 5651251219 is 9121521565.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5651251219 - 2¹ = 5651251217 is a prime.

It is a super-2 number, since 2×5651251219² = 63873280680497971922, which contains 22 as substring.

Together with 5651251217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5651251217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2825625609 + 2825625610.

It is an arithmetic number, because the mean of its divisors is an integer number (2825625610).

Almost surely, 2^5651251219 is an apocalyptic number.

5651251219 is a deficient number, since it is larger than the sum of its proper divisors (1).

5651251219 is an equidigital number, since it uses as much as digits as its factorization.

5651251219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 37.

The square root of 5651251219 is about 75174.8044161074. The cubic root of 5651251219 is about 1781.2089606074.

The spelling of 5651251219 in words is "five billion, six hundred fifty-one million, two hundred fifty-one thousand, two hundred nineteen".