2655561515 has 8 divisors (see below), whose sum is σ = 3230327328. Its totient is φ = 2095346880.

The previous prime is 2655561499. The next prime is 2655561541. The reversal of 2655561515 is 5151655562.

It is a happy number.

2655561515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2655561515 - 2⁴ = 2655561499 is a prime.

It is a Duffinian number.

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, 3637391 + ... + 3638120.

It is an arithmetic number, because the mean of its divisors is an integer number (403790916).

Almost surely, 2^2655561515 is an apocalyptic number.

2655561515 is a deficient number, since it is larger than the sum of its proper divisors (574765813).

2655561515 is an equidigital number, since it uses as much as digits as its factorization.

2655561515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275589.

The product of its digits is 225000, while the sum is 41.

The square root of 2655561515 is about 51532.1406017643. The cubic root of 2655561515 is about 1384.7948998378.

The spelling of 2655561515 in words is "two billion, six hundred fifty-five million, five hundred sixty-one thousand, five hundred fifteen".