52039221 has 8 divisors (see below), whose sum is σ = 74723040. Its totient is φ = 32024112.

The previous prime is 52039219. The next prime is 52039241. The reversal of 52039221 is 12293025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52039221 - 2¹ = 52039219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52039191 and 52039200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52039241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667131 + ... + 667208.

It is an arithmetic number, because the mean of its divisors is an integer number (9340380).

Almost surely, 2^52039221 is an apocalyptic number.

It is an amenable number.

52039221 is a deficient number, since it is larger than the sum of its proper divisors (22683819).

52039221 is a wasteful number, since it uses less digits than its factorization.

52039221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334355.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 52039221 is about 7213.8215253775. The cubic root of 52039221 is about 373.3449336496.

The spelling of 52039221 in words is "fifty-two million, thirty-nine thousand, two hundred twenty-one".