2545666315 has 8 divisors (see below), whose sum is σ = 3057932160. Its totient is φ = 2034444672.

The previous prime is 2545666297. The next prime is 2545666393. The reversal of 2545666315 is 5136665452.

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 2545666315 - 2⁷ = 2545666187 is a prime.

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, 255675 + ... + 265444.

It is an arithmetic number, because the mean of its divisors is an integer number (382241520).

Almost surely, 2^2545666315 is an apocalyptic number.

2545666315 is a deficient number, since it is larger than the sum of its proper divisors (512265845).

2545666315 is an equidigital number, since it uses as much as digits as its factorization.

2545666315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522101.

The product of its digits is 648000, while the sum is 43.

The square root of 2545666315 is about 50454.5965695892. The cubic root of 2545666315 is about 1365.4228256230.

The spelling of 2545666315 in words is "two billion, five hundred forty-five million, six hundred sixty-six thousand, three hundred fifteen".