2555591479047 has 20 divisors (see below), whose sum is σ = 3820186391560. Its totient is φ = 1702578734064.

The previous prime is 2555591479039. The next prime is 2555591479057. The reversal of 2555591479047 is 7409741955552.

It is a happy number.

2555591479047 is a `hidden beast` number, since 2 + 5 + 5 + 559 + 1 + 4 + 79 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 2555591479047 - 2³ = 2555591479039 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 (2555591479037) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10517272 + ... + 10757517.

It is an arithmetic number, because the mean of its divisors is an integer number (191009319578).

Almost surely, 2^{2555591479047} is an apocalyptic number.

2555591479047 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2555591479047 is a deficient number, since it is larger than the sum of its proper divisors (1264594912513).

2555591479047 is a wasteful number, since it uses less digits than its factorization.

2555591479047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21276284 (or 21276275 counting only the distinct ones).

The product of its (nonzero) digits is 79380000, while the sum is 63.

The spelling of 2555591479047 in words is "two trillion, five hundred fifty-five billion, five hundred ninety-one million, four hundred seventy-nine thousand, forty-seven".