2545511165 has 8 divisors (see below), whose sum is σ = 3078666240. Its totient is φ = 2020373712.

The previous prime is 2545511141. The next prime is 2545511191. The reversal of 2545511165 is 5611155452.

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 2545511165 - 2⁸ = 2545510909 is a prime.

It is a super-2 number, since 2×2545511165² = 12959254182279314450, which contains 22 as substring.

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, 2003705 + ... + 2004974.

It is an arithmetic number, because the mean of its divisors is an integer number (384833280).

Almost surely, 2^2545511165 is an apocalyptic number.

It is an amenable number.

2545511165 is a deficient number, since it is larger than the sum of its proper divisors (533155075).

2545511165 is a wasteful number, since it uses less digits than its factorization.

2545511165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008811.

The product of its digits is 30000, while the sum is 35.

The square root of 2545511165 is about 50453.0590251969. The cubic root of 2545511165 is about 1365.3950857140.

The spelling of 2545511165 in words is "two billion, five hundred forty-five million, five hundred eleven thousand, one hundred sixty-five".