2555049987 has 48 divisors (see below), whose sum is σ = 4388966400. Its totient is φ = 1455060672.

The previous prime is 2555049979. The next prime is 2555050021. The reversal of 2555049987 is 7899405552.

2555049987 is a `hidden beast` number, since 2 + 5 + 550 + 4 + 9 + 9 + 87 = 666.

It is not a de Polignac number, because 2555049987 - 2³ = 2555049979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2555049487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 530014 + ... + 534812.

It is an arithmetic number, because the mean of its divisors is an integer number (91436800).

Almost surely, 2^2555049987 is an apocalyptic number.

2555049987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2555049987 is a deficient number, since it is larger than the sum of its proper divisors (1833916413).

2555049987 is an equidigital number, since it uses as much as digits as its factorization.

2555049987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134 (or 5122 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The square root of 2555049987 is about 50547.5022825065. The cubic root of 2555049987 is about 1367.0984797767.

The spelling of 2555049987 in words is "two billion, five hundred fifty-five million, forty-nine thousand, nine hundred eighty-seven".