5215612111 has 2 divisors, whose sum is σ = 5215612112. Its totient is φ = 5215612110.

The previous prime is 5215612069. The next prime is 5215612117. The reversal of 5215612111 is 1112165125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5215612111 - 2¹¹ = 5215610063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5215612117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607806055 + 2607806056.

It is an arithmetic number, because the mean of its divisors is an integer number (2607806056).

Almost surely, 2^5215612111 is an apocalyptic number.

5215612111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215612111 is an equidigital number, since it uses as much as digits as its factorization.

5215612111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 25.

The square root of 5215612111 is about 72219.1948930477. The cubic root of 5215612111 is about 1734.2103016144.

Adding to 5215612111 its reverse (1112165125), we get a palindrome (6327777236).

The spelling of 5215612111 in words is "five billion, two hundred fifteen million, six hundred twelve thousand, one hundred eleven".