55518343705 has 32 divisors (see below), whose sum is σ = 75383913600. Its totient is φ = 38881382400.

The previous prime is 55518343679. The next prime is 55518343709. The reversal of 55518343705 is 50734381555.

55518343705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55518343705 - 2⁹ = 55518343193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55518343709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558585 + ... + 650425.

It is an arithmetic number, because the mean of its divisors is an integer number (2355747300).

Almost surely, 2^55518343705 is an apocalyptic number.

55518343705 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55518343705 is a deficient number, since it is larger than the sum of its proper divisors (19865569895).

55518343705 is a wasteful number, since it uses less digits than its factorization.

55518343705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92265.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 55518343705 in words is "fifty-five billion, five hundred eighteen million, three hundred forty-three thousand, seven hundred five".