55552887655 has 4 divisors (see below), whose sum is σ = 66663465192. Its totient is φ = 44442310120.

The previous prime is 55552887613. The next prime is 55552887673. The reversal of 55552887655 is 55678825555.

It is a happy number.

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

It is not a de Polignac number, because 55552887655 - 2⁷ = 55552887527 is a prime.

It is a super-2 number, since 2×55552887655² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55552887593 and 55552887602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555288761 + ... + 5555288770.

It is an arithmetic number, because the mean of its divisors is an integer number (16665866298).

Almost surely, 2^55552887655 is an apocalyptic number.

55552887655 is a deficient number, since it is larger than the sum of its proper divisors (11110577537).

55552887655 is a wasteful number, since it uses less digits than its factorization.

55552887655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110577536.

The product of its digits is 84000000, while the sum is 61.

The spelling of 55552887655 in words is "fifty-five billion, five hundred fifty-two million, eight hundred eighty-seven thousand, six hundred fifty-five".