52800421 has 4 divisors (see below), whose sum is σ = 52913952. Its totient is φ = 52686892.

The previous prime is 52800403. The next prime is 52800437. The reversal of 52800421 is 12400825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52800421 - 2¹¹ = 52798373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52800392 and 52800401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52800481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56065 + ... + 56998.

It is an arithmetic number, because the mean of its divisors is an integer number (13228488).

Almost surely, 2^52800421 is an apocalyptic number.

It is an amenable number.

52800421 is a deficient number, since it is larger than the sum of its proper divisors (113531).

52800421 is a wasteful number, since it uses less digits than its factorization.

52800421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113530.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52800421 is about 7266.3898188853. The cubic root of 52800421 is about 375.1564881696.

The spelling of 52800421 in words is "fifty-two million, eight hundred thousand, four hundred twenty-one".