195520 has 56 divisors (see below), whose sum is σ = 512064. Its totient is φ = 70656.

The previous prime is 195511. The next prime is 195527. The reversal of 195520 is 25591.

195520 = T₈₀ + T₈₁ + ... + T₁₁₈.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 195491 and 195500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4137 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (9144).

2¹⁹⁵⁵²⁰ is an apocalyptic number.

195520 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 195520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256032).

195520 is an abundant number, since it is smaller than the sum of its proper divisors (316544).

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

195520 is a wasteful number, since it uses less digits than its factorization.

195520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 195520 is about 442.1764353739. The cubic root of 195520 is about 58.0403999147.

The spelling of 195520 in words is "one hundred ninety-five thousand, five hundred twenty".