52730831 has 4 divisors (see below), whose sum is σ = 52772664. Its totient is φ = 52689000.

The previous prime is 52730807. The next prime is 52730863. The reversal of 52730831 is 13803725.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52730831 is a prime.

It is a super-2 number, since 2×52730831² = 5561081075901122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52730794 and 52730803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52730801) 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, 18965 + ... + 21566.

It is an arithmetic number, because the mean of its divisors is an integer number (13193166).

Almost surely, 2^52730831 is an apocalyptic number.

52730831 is a deficient number, since it is larger than the sum of its proper divisors (41833).

52730831 is a wasteful number, since it uses less digits than its factorization.

52730831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41832.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 52730831 is about 7261.5997548750. The cubic root of 52730831 is about 374.9915992192.

The spelling of 52730831 in words is "fifty-two million, seven hundred thirty thousand, eight hundred thirty-one".