55646354543 has 4 divisors (see below), whose sum is σ = 59926843368. Its totient is φ = 51365865720.

The previous prime is 55646354497. The next prime is 55646354549. The reversal of 55646354543 is 34545364655.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55646354543 - 2⁶ = 55646354479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55646354491 and 55646354500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55646354549) 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, 2140244393 + ... + 2140244418.

It is an arithmetic number, because the mean of its divisors is an integer number (14981710842).

Almost surely, 2^55646354543 is an apocalyptic number.

55646354543 is a deficient number, since it is larger than the sum of its proper divisors (4280488825).

55646354543 is a wasteful number, since it uses less digits than its factorization.

55646354543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280488824.

The product of its digits is 12960000, while the sum is 50.

The spelling of 55646354543 in words is "fifty-five billion, six hundred forty-six million, three hundred fifty-four thousand, five hundred forty-three".