55618716100 has 18 divisors (see below), whose sum is σ = 120692614154. Its totient is φ = 22247486400.

The previous prime is 55618716089. The next prime is 55618716103. The reversal of 55618716100 is 161781655.

It can be written as a sum of positive squares in 3 ways, for example, as 24621444 + 55594094656 = 4962^2 + 235784^2 .

It is a super-2 number, since 2×55618716100² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55618716103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278093481 + ... + 278093680.

Almost surely, 2^55618716100 is an apocalyptic number.

55618716100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55618716100 is an abundant number, since it is smaller than the sum of its proper divisors (65073898054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55618716100 is a wasteful number, since it uses less digits than its factorization.

55618716100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556187175 (or 556187168 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 55618716100 in words is "fifty-five billion, six hundred eighteen million, seven hundred sixteen thousand, one hundred".