55428927655 has 8 divisors (see below), whose sum is σ = 66852352512. Its totient is φ = 44118049248.

The previous prime is 55428927649. The next prime is 55428927661. The reversal of 55428927655 is 55672982455.

It is an interprime number because it is at equal distance from previous prime (55428927649) and next prime (55428927661).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55428927655 - 2⁹ = 55428927143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55428927655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28135527 + ... + 28137496.

It is an arithmetic number, because the mean of its divisors is an integer number (8356544064).

Almost surely, 2^55428927655 is an apocalyptic number.

55428927655 is a deficient number, since it is larger than the sum of its proper divisors (11423424857).

55428927655 is a wasteful number, since it uses less digits than its factorization.

55428927655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56273225.

The product of its digits is 30240000, while the sum is 58.

The spelling of 55428927655 in words is "fifty-five billion, four hundred twenty-eight million, nine hundred twenty-seven thousand, six hundred fifty-five".