54542365643 has 4 divisors (see below), whose sum is σ = 55310568048. Its totient is φ = 53774163240.

The previous prime is 54542365639. The next prime is 54542365663. The reversal of 54542365643 is 34656324545.

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 54542365643 - 2² = 54542365639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54542365663) 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, 384101096 + ... + 384101237.

It is an arithmetic number, because the mean of its divisors is an integer number (13827642012).

Almost surely, 2^54542365643 is an apocalyptic number.

54542365643 is a deficient number, since it is larger than the sum of its proper divisors (768202405).

54542365643 is an equidigital number, since it uses as much as digits as its factorization.

54542365643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768202404.

The product of its digits is 5184000, while the sum is 47.

The spelling of 54542365643 in words is "fifty-four billion, five hundred forty-two million, three hundred sixty-five thousand, six hundred forty-three".