52405222 has 8 divisors (see below), whose sum is σ = 79896672. Its totient is φ = 25773000.

The previous prime is 52405217. The next prime is 52405229. The reversal of 52405222 is 22250425.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 52405193 and 52405202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52405229) 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, 214654 + ... + 214897.

It is an arithmetic number, because the mean of its divisors is an integer number (9987084).

Almost surely, 2^52405222 is an apocalyptic number.

52405222 is a deficient number, since it is larger than the sum of its proper divisors (27491450).

52405222 is a wasteful number, since it uses less digits than its factorization.

52405222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429614.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 52405222 is about 7239.1451152743. The cubic root of 52405222 is about 374.2181565365.

Adding to 52405222 its reverse (22250425), we get a palindrome (74655647).

The spelling of 52405222 in words is "fifty-two million, four hundred five thousand, two hundred twenty-two".