52396691 has 4 divisors (see below), whose sum is σ = 54674832. Its totient is φ = 50118552.

The previous prime is 52396637. The next prime is 52396697. The reversal of 52396691 is 19669325.

52396691 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 a de Polignac number, because none of the positive numbers 2^k-52396691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52396697) 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, 1139036 + ... + 1139081.

It is an arithmetic number, because the mean of its divisors is an integer number (13668708).

Almost surely, 2^52396691 is an apocalyptic number.

52396691 is a deficient number, since it is larger than the sum of its proper divisors (2278141).

52396691 is a wasteful number, since it uses less digits than its factorization.

52396691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278140.

The product of its digits is 87480, while the sum is 41.

The square root of 52396691 is about 7238.5558642591. Note that the first 3 decimals coincide. The cubic root of 52396691 is about 374.1978492196.

The spelling of 52396691 in words is "fifty-two million, three hundred ninety-six thousand, six hundred ninety-one".