2656555279 has 4 divisors (see below), whose sum is σ = 3036063184. Its totient is φ = 2277047376.

The previous prime is 2656555259. The next prime is 2656555309. The reversal of 2656555279 is 9725556562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2656555279 - 2⁷ = 2656555151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656555229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189753942 + ... + 189753955.

It is an arithmetic number, because the mean of its divisors is an integer number (759015796).

Almost surely, 2^2656555279 is an apocalyptic number.

2656555279 is a deficient number, since it is larger than the sum of its proper divisors (379507905).

2656555279 is an equidigital number, since it uses as much as digits as its factorization.

2656555279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379507904.

The product of its digits is 5670000, while the sum is 52.

The square root of 2656555279 is about 51541.7818764544. The cubic root of 2656555279 is about 1384.9676175706.

The spelling of 2656555279 in words is "two billion, six hundred fifty-six million, five hundred fifty-five thousand, two hundred seventy-nine".