5205222 has 80 divisors (see below), whose sum is σ = 13381632. Its totient is φ = 1496880.

The previous prime is 5205173. The next prime is 5205227. The reversal of 5205222 is 2225025.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5205195 and 5205204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205227) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40923 + ... + 41049.

Almost surely, 2^5205222 is an apocalyptic number.

5205222 is the 1863-rd pentagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5205222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6690816).

5205222 is an abundant number, since it is smaller than the sum of its proper divisors (8176410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5205222 is a wasteful number, since it uses less digits than its factorization.

5205222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 5205222 is about 2281.4955621259. The cubic root of 5205222 is about 173.3057952636.

The spelling of 5205222 in words is "five million, two hundred five thousand, two hundred twenty-two".