52215111 has 24 divisors (see below), whose sum is σ = 84236880. Its totient is φ = 32130432.

The previous prime is 52215101. The next prime is 52215131. The reversal of 52215111 is 11151225.

It is not a de Polignac number, because 52215111 - 2¹⁰ = 52214087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5106 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (3509870).

Almost surely, 2^52215111 is an apocalyptic number.

52215111 is a deficient number, since it is larger than the sum of its proper divisors (32021769).

52215111 is a wasteful number, since it uses less digits than its factorization.

52215111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16557 (or 16545 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 52215111 is about 7226.0024218097. The cubic root of 52215111 is about 373.7650897887.

Adding to 52215111 its reverse (11151225), we get a palindrome (63366336).

It can be divided in two parts, 52215 and 111, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 52215111 in words is "fifty-two million, two hundred fifteen thousand, one hundred eleven".