52045691 has 4 divisors (see below), whose sum is σ = 53840400. Its totient is φ = 50250984.

The previous prime is 52045673. The next prime is 52045699. The reversal of 52045691 is 19654025.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52045691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52045699) 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, 897311 + ... + 897368.

It is an arithmetic number, because the mean of its divisors is an integer number (13460100).

Almost surely, 2^52045691 is an apocalyptic number.

52045691 is a deficient number, since it is larger than the sum of its proper divisors (1794709).

52045691 is a wasteful number, since it uses less digits than its factorization.

52045691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794708.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 52045691 is about 7214.2699561355. The cubic root of 52045691 is about 373.3604055800.

The spelling of 52045691 in words is "fifty-two million, forty-five thousand, six hundred ninety-one".