55564441723 has 4 divisors (see below), whose sum is σ = 63502219120. Its totient is φ = 47626664328.

The previous prime is 55564441721. The next prime is 55564441727. The reversal of 55564441723 is 32714446555.

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 55564441723 - 2¹ = 55564441721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55564441721) 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, 3968888688 + ... + 3968888701.

It is an arithmetic number, because the mean of its divisors is an integer number (15875554780).

Almost surely, 2^55564441723 is an apocalyptic number.

55564441723 is a deficient number, since it is larger than the sum of its proper divisors (7937777397).

55564441723 is an equidigital number, since it uses as much as digits as its factorization.

55564441723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7937777396.

The product of its digits is 2016000, while the sum is 46.

The spelling of 55564441723 in words is "fifty-five billion, five hundred sixty-four million, four hundred forty-one thousand, seven hundred twenty-three".