52021286 has 16 divisors (see below), whose sum is σ = 80780928. Its totient is φ = 25099200.

The previous prime is 52021261. The next prime is 52021313. The reversal of 52021286 is 68212025.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 25106 + ... + 27098.

It is an arithmetic number, because the mean of its divisors is an integer number (5048808).

Almost surely, 2^52021286 is an apocalyptic number.

52021286 is a deficient number, since it is larger than the sum of its proper divisors (28759642).

52021286 is a wasteful number, since it uses less digits than its factorization.

52021286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 52021286 is about 7212.5783184656. The cubic root of 52021286 is about 373.3020383702.

The spelling of 52021286 in words is "fifty-two million, twenty-one thousand, two hundred eighty-six".