55855676587 has 4 divisors (see below), whose sum is σ = 55856431576. Its totient is φ = 55854921600.

The previous prime is 55855676573. The next prime is 55855676609. The reversal of 55855676587 is 78567655855.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55855676587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55855676537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252789 + ... + 419062.

It is an arithmetic number, because the mean of its divisors is an integer number (13964107894).

Almost surely, 2^55855676587 is an apocalyptic number.

55855676587 is a deficient number, since it is larger than the sum of its proper divisors (754989).

55855676587 is an equidigital number, since it uses as much as digits as its factorization.

55855676587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754988.

The product of its digits is 352800000, while the sum is 67.

The spelling of 55855676587 in words is "fifty-five billion, eight hundred fifty-five million, six hundred seventy-six thousand, five hundred eighty-seven".