2164625575 has 18 divisors (see below), whose sum is σ = 3068456136. Its totient is φ = 1483892640.

The previous prime is 2164625549. The next prime is 2164625599. The reversal of 2164625575 is 5755264612.

It is not a de Polignac number, because 2164625575 - 2⁷ = 2164625447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 613717 + ... + 617233.

Almost surely, 2^2164625575 is an apocalyptic number.

2164625575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2164625575 is a deficient number, since it is larger than the sum of its proper divisors (903830561).

2164625575 is an frugal number, since it uses more digits than its factorization.

2164625575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051 (or 3529 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 2164625575 is about 46525.5368050708. The cubic root of 2164625575 is about 1293.5828875457.

The spelling of 2164625575 in words is "two billion, one hundred sixty-four million, six hundred twenty-five thousand, five hundred seventy-five".