52051111 has 4 divisors (see below), whose sum is σ = 59486992. Its totient is φ = 44615232.

The previous prime is 52051081. The next prime is 52051121. The reversal of 52051111 is 11115025.

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 52051111 - 2²³ = 43662503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52051121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3717930 + ... + 3717943.

It is an arithmetic number, because the mean of its divisors is an integer number (14871748).

Almost surely, 2^52051111 is an apocalyptic number.

52051111 is a deficient number, since it is larger than the sum of its proper divisors (7435881).

52051111 is an equidigital number, since it uses as much as digits as its factorization.

52051111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7435880.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 52051111 is about 7214.6455907411. The cubic root of 52051111 is about 373.3733656229.

Adding to 52051111 its reverse (11115025), we get a palindrome (63166136).

The spelling of 52051111 in words is "fifty-two million, fifty-one thousand, one hundred eleven".