52021784 has 32 divisors (see below), whose sum is σ = 100548000. Its totient is φ = 25217280.

The previous prime is 52021757. The next prime is 52021789. The reversal of 52021784 is 48712025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021789) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 64874 + ... + 65670.

It is an arithmetic number, because the mean of its divisors is an integer number (3142125).

Almost surely, 2^52021784 is an apocalyptic number.

It is an amenable number.

52021784 is a deficient number, since it is larger than the sum of its proper divisors (48526216).

52021784 is a wasteful number, since it uses less digits than its factorization.

52021784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 52021784 is about 7212.6128414050. The cubic root of 52021784 is about 373.3032295738.

The spelling of 52021784 in words is "fifty-two million, twenty-one thousand, seven hundred eighty-four".