195015520 has 48 divisors (see below), whose sum is σ = 526544928. Its totient is φ = 66862080.

The previous prime is 195015503. The next prime is 195015553. The reversal of 195015520 is 25510591.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85941 + ... + 88180.

It is an arithmetic number, because the mean of its divisors is an integer number (10969686).

Almost surely, 2^195015520 is an apocalyptic number.

195015520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195015520 is an abundant number, since it is smaller than the sum of its proper divisors (331529408).

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

195015520 is a wasteful number, since it uses less digits than its factorization.

195015520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174143 (or 174135 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 195015520 is about 13964.7957378545. The cubic root of 195015520 is about 579.9043837624.

The spelling of 195015520 in words is "one hundred ninety-five million, fifteen thousand, five hundred twenty".