52991311 has 8 divisors (see below), whose sum is σ = 54387648. Its totient is φ = 51600000.

The previous prime is 52991299. The next prime is 52991317. The reversal of 52991311 is 11319925.

It is a happy number.

52991311 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 52991311 - 2⁹ = 52990799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52991317) 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, 29931 + ... + 31651.

It is an arithmetic number, because the mean of its divisors is an integer number (6798456).

Almost surely, 2^52991311 is an apocalyptic number.

52991311 is a deficient number, since it is larger than the sum of its proper divisors (1396337).

52991311 is a wasteful number, since it uses less digits than its factorization.

52991311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513.

The product of its digits is 2430, while the sum is 31.

The square root of 52991311 is about 7279.5131018496. The cubic root of 52991311 is about 375.6080470254.

The spelling of 52991311 in words is "fifty-two million, nine hundred ninety-one thousand, three hundred eleven".