52803621 has 12 divisors (see below), whose sum is σ = 82139148. Its totient is φ = 32494464.

The previous prime is 52803617. The next prime is 52803629. The reversal of 52803621 is 12630825.

It can be written as a sum of positive squares in 2 ways, for example, as 3101121 + 49702500 = 1761^2 + 7050^2 .

It is not a de Polignac number, because 52803621 - 2² = 52803617 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52803629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225540 + ... + 225773.

It is an arithmetic number, because the mean of its divisors is an integer number (6844929).

Almost surely, 2^52803621 is an apocalyptic number.

It is an amenable number.

52803621 is a deficient number, since it is larger than the sum of its proper divisors (29335527).

52803621 is a wasteful number, since it uses less digits than its factorization.

52803621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451332 (or 451329 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 52803621 is about 7266.6100074244. The cubic root of 52803621 is about 375.1640668750.

The spelling of 52803621 in words is "fifty-two million, eight hundred three thousand, six hundred twenty-one".