52533621 has 48 divisors (see below), whose sum is σ = 92671488. Its totient is φ = 27993600.

The previous prime is 52533617. The next prime is 52533629. The reversal of 52533621 is 12633525.

52533621 is a `hidden beast` number, since 5 + 2 + 5 + 33 + 621 = 666.

52533621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52533621 - 2² = 52533617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52533629) 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 in 47 ways as a sum of consecutive naturals, for example, 193716 + ... + 193986.

It is an arithmetic number, because the mean of its divisors is an integer number (1930656).

Almost surely, 2^52533621 is an apocalyptic number.

52533621 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

52533621 is a deficient number, since it is larger than the sum of its proper divisors (40137867).

52533621 is a wasteful number, since it uses less digits than its factorization.

52533621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 479 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 52533621 is about 7248.0080711876. The cubic root of 52533621 is about 374.5235335356.

The spelling of 52533621 in words is "fifty-two million, five hundred thirty-three thousand, six hundred twenty-one".