52172111 has 2 divisors, whose sum is σ = 52172112. Its totient is φ = 52172110.

The previous prime is 52172093. The next prime is 52172117. The reversal of 52172111 is 11127125.

It is a happy number.

52172111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52172111 - 2⁶ = 52172047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52172117) 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, 26086055 + 26086056.

It is an arithmetic number, because the mean of its divisors is an integer number (26086056).

Almost surely, 2^52172111 is an apocalyptic number.

52172111 is a deficient number, since it is larger than the sum of its proper divisors (1).

52172111 is an equidigital number, since it uses as much as digits as its factorization.

52172111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 140, while the sum is 20.

The square root of 52172111 is about 7223.0264432577. The cubic root of 52172111 is about 373.6624610516.

Adding to 52172111 its reverse (11127125), we get a palindrome (63299236).

The spelling of 52172111 in words is "fifty-two million, one hundred seventy-two thousand, one hundred eleven".