2545214665 has 8 divisors (see below), whose sum is σ = 3490580160. Its totient is φ = 1745290032.

The previous prime is 2545214647. The next prime is 2545214681. The reversal of 2545214665 is 5664125452.

It is a happy number.

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 2545214665 - 2⁹ = 2545214153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36360175 + ... + 36360244.

It is an arithmetic number, because the mean of its divisors is an integer number (436322520).

Almost surely, 2^2545214665 is an apocalyptic number.

It is an amenable number.

2545214665 is a deficient number, since it is larger than the sum of its proper divisors (945365495).

2545214665 is an equidigital number, since it uses as much as digits as its factorization.

2545214665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72720431.

The product of its digits is 288000, while the sum is 40.

The square root of 2545214665 is about 50450.1205647717. The cubic root of 2545214665 is about 1365.3420701196.

The spelling of 2545214665 in words is "two billion, five hundred forty-five million, two hundred fourteen thousand, six hundred sixty-five".