195552220 has 48 divisors (see below), whose sum is σ = 426888000. Its totient is φ = 75156480.

The previous prime is 195552193. The next prime is 195552221. The reversal of 195552220 is 22255591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195552221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139081 + ... + 140479.

It is an arithmetic number, because the mean of its divisors is an integer number (8893500).

Almost surely, 2^195552220 is an apocalyptic number.

195552220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195552220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213444000).

195552220 is an abundant number, since it is smaller than the sum of its proper divisors (231335780).

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

195552220 is a wasteful number, since it uses less digits than its factorization.

195552220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 195552220 is about 13983.9987128146. The cubic root of 195552220 is about 580.4358792443.

The spelling of 195552220 in words is "one hundred ninety-five million, five hundred fifty-two thousand, two hundred twenty".