52190208 has 132 divisors (see below), whose sum is σ = 172439280. Its totient is φ = 14893056.

The previous prime is 52190189. The next prime is 52190209. The reversal of 52190208 is 80209125.

It is a super-2 number, since 2×52190208² = 5447635622166528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52190209) 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, 64108 + ... + 64916.

Almost surely, 2^52190208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52190208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86219640).

52190208 is an abundant number, since it is smaller than the sum of its proper divisors (120249072).

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

52190208 is a wasteful number, since it uses less digits than its factorization.

52190208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 52190208 is about 7224.2790643773. The cubic root of 52190208 is about 373.7056602993.

The spelling of 52190208 in words is "fifty-two million, one hundred ninety thousand, two hundred eight".