52840191 has 8 divisors (see below), whose sum is σ = 70495920. Its totient is φ = 35205632.

The previous prime is 52840189. The next prime is 52840201. The reversal of 52840191 is 19104825.

It is a happy number.

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 52840191 - 2¹ = 52840189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52840111) 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, 1951 + ... + 10463.

It is an arithmetic number, because the mean of its divisors is an integer number (8811990).

Almost surely, 2^52840191 is an apocalyptic number.

52840191 is a deficient number, since it is larger than the sum of its proper divisors (17655729).

52840191 is a wasteful number, since it uses less digits than its factorization.

52840191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 52840191 is about 7269.1258759221. The cubic root of 52840191 is about 375.2506555319.

The spelling of 52840191 in words is "fifty-two million, eight hundred forty thousand, one hundred ninety-one".