2555502779 has 4 divisors (see below), whose sum is σ = 2556828120. Its totient is φ = 2554177440.

The previous prime is 2555502767. The next prime is 2555502809. The reversal of 2555502779 is 9772055552.

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 2555502779 - 2²⁸ = 2287067323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555502379) 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, 659774 + ... + 663635.

It is an arithmetic number, because the mean of its divisors is an integer number (639207030).

Almost surely, 2^2555502779 is an apocalyptic number.

2555502779 is a deficient number, since it is larger than the sum of its proper divisors (1325341).

2555502779 is a wasteful number, since it uses less digits than its factorization.

2555502779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325340.

The product of its (nonzero) digits is 1102500, while the sum is 47.

The square root of 2555502779 is about 50551.9809601958. The cubic root of 2555502779 is about 1367.1792315814.

The spelling of 2555502779 in words is "two billion, five hundred fifty-five million, five hundred two thousand, seven hundred seventy-nine".