52667813 has 8 divisors (see below), whose sum is σ = 57620160. Its totient is φ = 47742880.

The previous prime is 52667809. The next prime is 52667843. The reversal of 52667813 is 31876625.

52667813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52667813 - 2² = 52667809 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 (52667843) 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 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 10617.

It is an arithmetic number, because the mean of its divisors is an integer number (7202520).

Almost surely, 2^52667813 is an apocalyptic number.

It is an amenable number.

52667813 is a deficient number, since it is larger than the sum of its proper divisors (4952347).

52667813 is a wasteful number, since it uses less digits than its factorization.

52667813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13707.

The product of its digits is 60480, while the sum is 38.

The square root of 52667813 is about 7257.2593311801. The cubic root of 52667813 is about 374.8421569783.

The spelling of 52667813 in words is "fifty-two million, six hundred sixty-seven thousand, eight hundred thirteen".