52168691 has 8 divisors (see below), whose sum is σ = 53935104. Its totient is φ = 50407560.

The previous prime is 52168667. The next prime is 52168693. The reversal of 52168691 is 19686125.

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 52168691 - 2¹⁴ = 52152307 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (52168693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35330 + ... + 36776.

It is an arithmetic number, because the mean of its divisors is an integer number (6741888).

Almost surely, 2^52168691 is an apocalyptic number.

52168691 is a deficient number, since it is larger than the sum of its proper divisors (1766413).

52168691 is a wasteful number, since it uses less digits than its factorization.

52168691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641.

The product of its digits is 25920, while the sum is 38.

The square root of 52168691 is about 7222.7896965092. The cubic root of 52168691 is about 373.6542960664.

The spelling of 52168691 in words is "fifty-two million, one hundred sixty-eight thousand, six hundred ninety-one".