52091911 has 4 divisors (see below), whose sum is σ = 52173072. Its totient is φ = 52010752.

The previous prime is 52091899. The next prime is 52091929. The reversal of 52091911 is 11919025.

52091911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52091911 - 2⁷ = 52091783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52091911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52191911) 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 in 3 ways as a sum of consecutive naturals, for example, 39610 + ... + 40903.

It is an arithmetic number, because the mean of its divisors is an integer number (13043268).

Almost surely, 2^52091911 is an apocalyptic number.

52091911 is a deficient number, since it is larger than the sum of its proper divisors (81161).

52091911 is an equidigital number, since it uses as much as digits as its factorization.

52091911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81160.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 52091911 is about 7217.4726185833. The cubic root of 52091911 is about 373.4708957523.

The spelling of 52091911 in words is "fifty-two million, ninety-one thousand, nine hundred eleven".