2654720565 has 64 divisors (see below), whose sum is σ = 5186365440. Its totient is φ = 1132496640.

The previous prime is 2654720543. The next prime is 2654720567. The reversal of 2654720565 is 5650274562.

It is not a de Polignac number, because 2654720565 - 2¹² = 2654716469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654720567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123735 + ... + 143595.

It is an arithmetic number, because the mean of its divisors is an integer number (81036960).

Almost surely, 2^2654720565 is an apocalyptic number.

It is an amenable number.

2654720565 is a deficient number, since it is larger than the sum of its proper divisors (2531644875).

2654720565 is a wasteful number, since it uses less digits than its factorization.

2654720565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19962.

The product of its (nonzero) digits is 504000, while the sum is 42.

The square root of 2654720565 is about 51523.9804848189. The cubic root of 2654720565 is about 1384.6487077533.

The spelling of 2654720565 in words is "two billion, six hundred fifty-four million, seven hundred twenty thousand, five hundred sixty-five".