55647274655 has 16 divisors (see below), whose sum is σ = 76320099840. Its totient is φ = 38156212512.

The previous prime is 55647274603. The next prime is 55647274699.

55647274655 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 55647274655 - 2¹⁶ = 55647209119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55647274655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279172 + ... + 1321958.

It is an arithmetic number, because the mean of its divisors is an integer number (4770006240).

Almost surely, 2^55647274655 is an apocalyptic number.

55647274655 is a deficient number, since it is larger than the sum of its proper divisors (20672825185).

55647274655 is a wasteful number, since it uses less digits than its factorization.

55647274655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79958.

The product of its digits is 35280000, while the sum is 56.

The spelling of 55647274655 in words is "fifty-five billion, six hundred forty-seven million, two hundred seventy-four thousand, six hundred fifty-five".