55000504987 has 2 divisors, whose sum is σ = 55000504988. Its totient is φ = 55000504986.

The previous prime is 55000504943. The next prime is 55000505023. The reversal of 55000504987 is 78940500055.

55000504987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55000504987 - 2²³ = 54992116379 is a prime.

It is not a weakly prime, because it can be changed into another prime (55000504907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500252493 + 27500252494.

It is an arithmetic number, because the mean of its divisors is an integer number (27500252494).

Almost surely, 2^55000504987 is an apocalyptic number.

55000504987 is a deficient number, since it is larger than the sum of its proper divisors (1).

55000504987 is an equidigital number, since it uses as much as digits as its factorization.

55000504987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 55000504987 in words is "fifty-five billion, five hundred four thousand, nine hundred eighty-seven".