195080520 has 96 divisors (see below), whose sum is σ = 606769920. Its totient is φ = 50123520.

The previous prime is 195080497. The next prime is 195080527. The reversal of 195080520 is 25080591.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (195080527) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 851766 + ... + 851994.

It is an arithmetic number, because the mean of its divisors is an integer number (6320520).

Almost surely, 2^195080520 is an apocalyptic number.

195080520 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 195080520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303384960).

195080520 is an abundant number, since it is smaller than the sum of its proper divisors (411689400).

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

195080520 is a wasteful number, since it uses less digits than its factorization.

195080520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 195080520 is about 13967.1228246908. The cubic root of 195080520 is about 579.9688052981.

The spelling of 195080520 in words is "one hundred ninety-five million, eighty thousand, five hundred twenty".