2565097573 has 8 divisors (see below), whose sum is σ = 2661568256. Its totient is φ = 2469484800.

The previous prime is 2565097571. The next prime is 2565097597. The reversal of 2565097573 is 3757905652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2565097573 - 2¹ = 2565097571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565097571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208383 + ... + 220348.

It is an arithmetic number, because the mean of its divisors is an integer number (332696032).

Almost surely, 2^2565097573 is an apocalyptic number.

It is an amenable number.

2565097573 is a deficient number, since it is larger than the sum of its proper divisors (96470683).

2565097573 is a wasteful number, since it uses less digits than its factorization.

2565097573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428955.

The product of its (nonzero) digits is 1984500, while the sum is 49.

The square root of 2565097573 is about 50646.7923268592. The cubic root of 2565097573 is about 1368.8881477488. Note that the first 3 decimals are identical.

The spelling of 2565097573 in words is "two billion, five hundred sixty-five million, ninety-seven thousand, five hundred seventy-three".