52847491 has 4 divisors (see below), whose sum is σ = 55145232. Its totient is φ = 50549752.

The previous prime is 52847479. The next prime is 52847497. The reversal of 52847491 is 19474825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52847491 - 2¹⁹ = 52323203 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52847497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148836 + ... + 1148881.

It is an arithmetic number, because the mean of its divisors is an integer number (13786308).

Almost surely, 2^52847491 is an apocalyptic number.

52847491 is a deficient number, since it is larger than the sum of its proper divisors (2297741).

52847491 is a wasteful number, since it uses less digits than its factorization.

52847491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297740.

The product of its digits is 80640, while the sum is 40.

The square root of 52847491 is about 7269.6279822285. The cubic root of 52847491 is about 375.2679353310.

The spelling of 52847491 in words is "fifty-two million, eight hundred forty-seven thousand, four hundred ninety-one".