54544144381 has 4 divisors (see below), whose sum is σ = 54870756192. Its totient is φ = 54217532572.

The previous prime is 54544144373. The next prime is 54544144393. The reversal of 54544144381 is 18344144545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54544144381 - 2³ = 54544144373 is a prime.

It is a super-2 number, since 2×54544144381² (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 (54544144301) 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, 163305655 + ... + 163305988.

It is an arithmetic number, because the mean of its divisors is an integer number (13717689048).

Almost surely, 2^54544144381 is an apocalyptic number.

It is an amenable number.

54544144381 is a deficient number, since it is larger than the sum of its proper divisors (326611811).

54544144381 is a wasteful number, since it uses less digits than its factorization.

54544144381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326611810.

The product of its digits is 614400, while the sum is 43.

The spelling of 54544144381 in words is "fifty-four billion, five hundred forty-four million, one hundred forty-four thousand, three hundred eighty-one".