52811942 has 4 divisors (see below), whose sum is σ = 79217916. Its totient is φ = 26405970.

The previous prime is 52811939. The next prime is 52811947. The reversal of 52811942 is 24911825.

52811942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×52811942² = 5578202435622728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52811899 and 52811908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52811947) 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 as a sum of consecutive naturals, namely, 13202984 + ... + 13202987.

It is an arithmetic number, because the mean of its divisors is an integer number (19804479).

Almost surely, 2^52811942 is an apocalyptic number.

52811942 is a deficient number, since it is larger than the sum of its proper divisors (26405974).

52811942 is a wasteful number, since it uses less digits than its factorization.

52811942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26405973.

The product of its digits is 5760, while the sum is 32.

The square root of 52811942 is about 7267.1825352058. The cubic root of 52811942 is about 375.1837724443.

The spelling of 52811942 in words is "fifty-two million, eight hundred eleven thousand, nine hundred forty-two".