2172551332 has 12 divisors (see below), whose sum is σ = 4345102720. Its totient is φ = 931093416.

The previous prime is 2172551239. The next prime is 2172551369. The reversal of 2172551332 is 2331552712.

2172551332 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2172551294 and 2172551303.

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, 38795532 + ... + 38795587.

Almost surely, 2^2172551332 is an apocalyptic number.

It is an amenable number.

2172551332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2172551332 is a wasteful number, since it uses less digits than its factorization.

2172551332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77591130 (or 77591128 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 2172551332 is about 46610.6353957978. The cubic root of 2172551332 is about 1295.1597785394.

The spelling of 2172551332 in words is "two billion, one hundred seventy-two million, five hundred fifty-one thousand, three hundred thirty-two".