2175572880 has 120 divisors (see below), whose sum is σ = 7868355768. Its totient is φ = 535523328.

The previous prime is 2175572857. The next prime is 2175572887. The reversal of 2175572880 is 882755712.

2175572880 is a `hidden beast` number, since 2 + 1 + 75 + 572 + 8 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8856576 + 2166716304 = 2976^2 + 46548^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2175572887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106857 + ... + 125576.

Almost surely, 2^2175572880 is an apocalyptic number.

2175572880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2175572880 is an abundant number, since it is smaller than the sum of its proper divisors (5692782888).

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

2175572880 is a wasteful number, since it uses less digits than its factorization.

2175572880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232465 (or 232456 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 2175572880 is about 46643.0367793522. The cubic root of 2175572880 is about 1295.7599292404.

The spelling of 2175572880 in words is "two billion, one hundred seventy-five million, five hundred seventy-two thousand, eight hundred eighty".