52564191 has 4 divisors (see below), whose sum is σ = 70085592. Its totient is φ = 35042792.

The previous prime is 52564121. The next prime is 52564199. The reversal of 52564191 is 19146525.

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 52564191 - 2⁷ = 52564063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52564199) 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, 8760696 + ... + 8760701.

It is an arithmetic number, because the mean of its divisors is an integer number (17521398).

Almost surely, 2^52564191 is an apocalyptic number.

52564191 is a deficient number, since it is larger than the sum of its proper divisors (17521401).

52564191 is a wasteful number, since it uses less digits than its factorization.

52564191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17521400.

The product of its digits is 10800, while the sum is 33.

The square root of 52564191 is about 7250.1166197517. The cubic root of 52564191 is about 374.5961661603.

The spelling of 52564191 in words is "fifty-two million, five hundred sixty-four thousand, one hundred ninety-one".