52813181 has 4 divisors (see below), whose sum is σ = 54516864. Its totient is φ = 51109500.

The previous prime is 52813157. The next prime is 52813193. The reversal of 52813181 is 18131825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52813181 - 2¹⁴ = 52796797 is a prime.

It is a super-2 number, since 2×52813181² = 5578464174677522, which contains 22 as substring.

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 (52813121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851795 + ... + 851856.

It is an arithmetic number, because the mean of its divisors is an integer number (13629216).

Almost surely, 2^52813181 is an apocalyptic number.

It is an amenable number.

52813181 is a deficient number, since it is larger than the sum of its proper divisors (1703683).

52813181 is a wasteful number, since it uses less digits than its factorization.

52813181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703682.

The product of its digits is 1920, while the sum is 29.

The square root of 52813181 is about 7267.2677809477. The cubic root of 52813181 is about 375.1867064339.

The spelling of 52813181 in words is "fifty-two million, eight hundred thirteen thousand, one hundred eighty-one".