2172537560 has 16 divisors (see below), whose sum is σ = 4888209600. Its totient is φ = 869015008.

The previous prime is 2172537557. The next prime is 2172537599. The reversal of 2172537560 is 657352712.

It is a super-2 number, since 2×2172537560² = 9439838899221507200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27156680 + ... + 27156759.

It is an arithmetic number, because the mean of its divisors is an integer number (305513100).

Almost surely, 2^2172537560 is an apocalyptic number.

2172537560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2172537560 is an abundant number, since it is smaller than the sum of its proper divisors (2715672040).

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

2172537560 is a wasteful number, since it uses less digits than its factorization.

2172537560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54313450 (or 54313446 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 2172537560 is about 46610.4876610404. The cubic root of 2172537560 is about 1295.1570418218.

The spelling of 2172537560 in words is "two billion, one hundred seventy-two million, five hundred thirty-seven thousand, five hundred sixty".