195365520 has 400 divisors, whose sum is σ = 799413120. Its totient is φ = 43296768.

The previous prime is 195365509. The next prime is 195365537. The reversal of 195365520 is 25563591.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2676204 + ... + 2676276.

Almost surely, 2^195365520 is an apocalyptic number.

195365520 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 195365520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399706560).

195365520 is an abundant number, since it is smaller than the sum of its proper divisors (604047600).

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

195365520 is a wasteful number, since it uses less digits than its factorization.

195365520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 195365520 is about 13977.3216318435. The cubic root of 195365520 is about 580.2511001535.

The spelling of 195365520 in words is "one hundred ninety-five million, three hundred sixty-five thousand, five hundred twenty".