55421896127 has 4 divisors (see below), whose sum is σ = 59685118920. Its totient is φ = 51158673336.

The previous prime is 55421896091. The next prime is 55421896169. The reversal of 55421896127 is 72169812455.

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 55421896127 - 2⁶ = 55421896063 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 (55429896127) 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, 2131611377 + ... + 2131611402.

It is an arithmetic number, because the mean of its divisors is an integer number (14921279730).

Almost surely, 2^55421896127 is an apocalyptic number.

55421896127 is a deficient number, since it is larger than the sum of its proper divisors (4263222793).

55421896127 is a wasteful number, since it uses less digits than its factorization.

55421896127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263222792.

The product of its digits is 1209600, while the sum is 50.

The spelling of 55421896127 in words is "fifty-five billion, four hundred twenty-one million, eight hundred ninety-six thousand, one hundred twenty-seven".