52111505 has 4 divisors (see below), whose sum is σ = 62533812. Its totient is φ = 41689200.

The previous prime is 52111453. The next prime is 52111513. The reversal of 52111505 is 50511125.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24275329 + 27836176 = 4927^2 + 5276^2 .

It is not a de Polignac number, because 52111505 - 2⁶ = 52111441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5211146 + ... + 5211155.

It is an arithmetic number, because the mean of its divisors is an integer number (15633453).

Almost surely, 2^52111505 is an apocalyptic number.

It is an amenable number.

52111505 is a deficient number, since it is larger than the sum of its proper divisors (10422307).

52111505 is a wasteful number, since it uses less digits than its factorization.

52111505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422306.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 52111505 is about 7218.8298913328. The cubic root of 52111505 is about 373.5177160185.

The spelling of 52111505 in words is "fifty-two million, one hundred eleven thousand, five hundred five".