55669273687 has 4 divisors (see below), whose sum is σ = 58599235480. Its totient is φ = 52739311896.

The previous prime is 55669273679. The next prime is 55669273697. The reversal of 55669273687 is 78637296655.

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

It is a cyclic number.

It is not a de Polignac number, because 55669273687 - 2³ = 55669273679 is a prime.

It is a super-2 number, since 2×55669273687² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55669273697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464980868 + ... + 1464980905.

It is an arithmetic number, because the mean of its divisors is an integer number (14649808870).

Almost surely, 2^55669273687 is an apocalyptic number.

55669273687 is a deficient number, since it is larger than the sum of its proper divisors (2929961793).

55669273687 is a wasteful number, since it uses less digits than its factorization.

55669273687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929961792.

The product of its digits is 114307200, while the sum is 64.

The spelling of 55669273687 in words is "fifty-five billion, six hundred sixty-nine million, two hundred seventy-three thousand, six hundred eighty-seven".