5215644851 has 2 divisors, whose sum is σ = 5215644852. Its totient is φ = 5215644850.

The previous prime is 5215644821. The next prime is 5215644869. The reversal of 5215644851 is 1584465125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5215644851 - 2²² = 5211450547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5215644799 and 5215644808.

It is not a weakly prime, because it can be changed into another prime (5215644821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607822425 + 2607822426.

It is an arithmetic number, because the mean of its divisors is an integer number (2607822426).

Almost surely, 2^5215644851 is an apocalyptic number.

5215644851 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215644851 is an equidigital number, since it uses as much as digits as its factorization.

5215644851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192000, while the sum is 41.

The square root of 5215644851 is about 72219.4215637317. The cubic root of 5215644851 is about 1734.2139303305.

The spelling of 5215644851 in words is "five billion, two hundred fifteen million, six hundred forty-four thousand, eight hundred fifty-one".