195511056 has 80 divisors (see below), whose sum is σ = 548131584. Its totient is φ = 59692032.

The previous prime is 195511051. The next prime is 195511061. The reversal of 195511056 is 650115591.

It is an interprime number because it is at equal distance from previous prime (195511051) and next prime (195511061).

It is a nialpdrome in base 16.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (195511051) 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, 84345 + ... + 86631.

Almost surely, 2^195511056 is an apocalyptic number.

195511056 is a gapful number since it is divisible by the number (16) 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 195511056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274065792).

195511056 is an abundant number, since it is smaller than the sum of its proper divisors (352620528).

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

195511056 is a wasteful number, since it uses less digits than its factorization.

195511056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 33.

The square root of 195511056 is about 13982.5268102729. The cubic root of 195511056 is about 580.3951488804.

The spelling of 195511056 in words is "one hundred ninety-five million, five hundred eleven thousand, fifty-six".