2172500004 has 12 divisors (see below), whose sum is σ = 5069166704. Its totient is φ = 724166664.

The previous prime is 2172499981. The next prime is 2172500021. The reversal of 2172500004 is 4000052712.

It is a tau number, because it is divible by the number of its divisors (12).

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, 90520822 + ... + 90520845.

Almost surely, 2^2172500004 is an apocalyptic number.

It is an amenable number.

2172500004 is an abundant number, since it is smaller than the sum of its proper divisors (2896666700).

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

2172500004 is a wasteful number, since it uses less digits than its factorization.

2172500004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181041674 (or 181041672 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2172500004 is about 46610.0847885948. The cubic root of 2172500004 is about 1295.1495787827.

Adding to 2172500004 its reverse (4000052712), we get a palindrome (6172552716).

The spelling of 2172500004 in words is "two billion, one hundred seventy-two million, five hundred thousand, four".