2565015545 has 8 divisors (see below), whose sum is σ = 3211845696. Its totient is φ = 1962794416.

The previous prime is 2565015533. The next prime is 2565015581. The reversal of 2565015545 is 5455105652.

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 2565015545 - 2¹⁴ = 2564999161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2565015499 and 2565015508.

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, 11152127 + ... + 11152356.

It is an arithmetic number, because the mean of its divisors is an integer number (401480712).

Almost surely, 2^2565015545 is an apocalyptic number.

It is an amenable number.

2565015545 is a deficient number, since it is larger than the sum of its proper divisors (646830151).

2565015545 is a wasteful number, since it uses less digits than its factorization.

2565015545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304511.

The product of its (nonzero) digits is 150000, while the sum is 38.

The square root of 2565015545 is about 50645.9825158916. The cubic root of 2565015545 is about 1368.8735559252.

The spelling of 2565015545 in words is "two billion, five hundred sixty-five million, fifteen thousand, five hundred forty-five".