2172100554 has 36 divisors (see below), whose sum is σ = 5096089206. Its totient is φ = 668337696.

The previous prime is 2172100549. The next prime is 2172100573. The reversal of 2172100554 is 4550012712.

2172100554 is a `hidden beast` number, since 2 + 1 + 7 + 2 + 100 + 554 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 330403329 + 1841697225 = 18177^2 + 42915^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 353977 + ... + 360060.

Almost surely, 2^2172100554 is an apocalyptic number.

2172100554 is an abundant number, since it is smaller than the sum of its proper divisors (2923988652).

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

2172100554 is a wasteful number, since it uses less digits than its factorization.

2172100554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714071 (or 714055 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 2172100554 is about 46605.7995747310. The cubic root of 2172100554 is about 1295.0701957050.

The spelling of 2172100554 in words is "two billion, one hundred seventy-two million, one hundred thousand, five hundred fifty-four".