2125625165 has 8 divisors (see below), whose sum is σ = 2551794840. Its totient is φ = 1699803712.

The previous prime is 2125625083. The next prime is 2125625189. The reversal of 2125625165 is 5615265212.

It can be written as a sum of positive squares in 4 ways, for example, as 376127236 + 1749497929 = 19394^2 + 41827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125625165 - 2²⁶ = 2058516301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73430 + ... + 98199.

It is an arithmetic number, because the mean of its divisors is an integer number (318974355).

Almost surely, 2^2125625165 is an apocalyptic number.

It is an amenable number.

2125625165 is a deficient number, since it is larger than the sum of its proper divisors (426169675).

2125625165 is a wasteful number, since it uses less digits than its factorization.

2125625165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174111.

The product of its digits is 36000, while the sum is 35.

The square root of 2125625165 is about 46104.5026542961. The cubic root of 2125625165 is about 1285.7668594581.

The spelling of 2125625165 in words is "two billion, one hundred twenty-five million, six hundred twenty-five thousand, one hundred sixty-five".