52830813 has 16 divisors (see below), whose sum is σ = 80892416. Its totient is φ = 30043440.

The previous prime is 52830803. The next prime is 52830829. The reversal of 52830813 is 31803825.

It is a happy number.

It is not a de Polignac number, because 52830813 - 2⁹ = 52830301 is a prime.

It is a super-3 number, since 3×52830813³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (30) 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 a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52830803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531 + ... + 10392.

It is an arithmetic number, because the mean of its divisors is an integer number (5055776).

Almost surely, 2^52830813 is an apocalyptic number.

It is an amenable number.

52830813 is a deficient number, since it is larger than the sum of its proper divisors (28061603).

52830813 is a wasteful number, since it uses less digits than its factorization.

52830813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12144.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 52830813 is about 7268.4807903715. The cubic root of 52830813 is about 375.2284545722.

The spelling of 52830813 in words is "fifty-two million, eight hundred thirty thousand, eight hundred thirteen".