80195520 has 56 divisors (see below), whose sum is σ = 254623824. Its totient is φ = 21385216.

The previous prime is 80195509. The next prime is 80195569. The reversal of 80195520 is 2559108.

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

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, 40809 + ... + 42728.

It is an arithmetic number, because the mean of its divisors is an integer number (4546854).

Almost surely, 2^80195520 is an apocalyptic number.

80195520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80195520 is an abundant number, since it is smaller than the sum of its proper divisors (174428304).

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

80195520 is a wasteful number, since it uses less digits than its factorization.

80195520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83557 (or 83547 counting only the distinct ones).

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

The square root of 80195520 is about 8955.1951402524. The cubic root of 80195520 is about 431.2376816477.

The spelling of 80195520 in words is "eighty million, one hundred ninety-five thousand, five hundred twenty".