52811906 has 48 divisors (see below), whose sum is σ = 98249760. Its totient is φ = 21168000.

The previous prime is 52811897. The next prime is 52811921. The reversal of 52811906 is 60911825.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210281 + ... + 210531.

It is an arithmetic number, because the mean of its divisors is an integer number (2046870).

Almost surely, 2^52811906 is an apocalyptic number.

52811906 is a deficient number, since it is larger than the sum of its proper divisors (45437854).

52811906 is a wasteful number, since it uses less digits than its factorization.

52811906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 52811906 is about 7267.1800583170. The cubic root of 52811906 is about 375.1836871945.

The spelling of 52811906 in words is "fifty-two million, eight hundred eleven thousand, nine hundred six".