55628446463 has 4 divisors (see below), whose sum is σ = 55631628168. Its totient is φ = 55625264760.

The previous prime is 55628446459. The next prime is 55628446493. The reversal of 55628446463 is 36464482655.

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 55628446463 - 2² = 55628446459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55628446493) 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, 1564481 + ... + 1599642.

It is an arithmetic number, because the mean of its divisors is an integer number (13907907042).

Almost surely, 2^55628446463 is an apocalyptic number.

55628446463 is a deficient number, since it is larger than the sum of its proper divisors (3181705).

55628446463 is a wasteful number, since it uses less digits than its factorization.

55628446463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181704.

The product of its digits is 16588800, while the sum is 53.

The spelling of 55628446463 in words is "fifty-five billion, six hundred twenty-eight million, four hundred forty-six thousand, four hundred sixty-three".