2025164165 has 4 divisors (see below), whose sum is σ = 2430197004. Its totient is φ = 1620131328.

The previous prime is 2025164159. The next prime is 2025164171. The reversal of 2025164165 is 5614615202.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2025164159) and next prime (2025164171).

It can be written as a sum of positive squares in 2 ways, for example, as 619064161 + 1406100004 = 24881^2 + 37498^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025164165 - 2¹⁴ = 2025147781 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 202516412 + ... + 202516421.

It is an arithmetic number, because the mean of its divisors is an integer number (607549251).

Almost surely, 2^2025164165 is an apocalyptic number.

It is an amenable number.

2025164165 is a deficient number, since it is larger than the sum of its proper divisors (405032839).

2025164165 is an equidigital number, since it uses as much as digits as its factorization.

2025164165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405032838.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2025164165 is about 45001.8240185884. The cubic root of 2025164165 is about 1265.1831852074.

Adding to 2025164165 its reverse (5614615202), we get a palindrome (7639779367).

The spelling of 2025164165 in words is "two billion, twenty-five million, one hundred sixty-four thousand, one hundred sixty-five".