55505611347056 has 160 divisors (see below), whose sum is σ = 121014414581760. Its totient is φ = 24470843443200.

The previous prime is 55505611347019. The next prime is 55505611347091. The reversal of 55505611347056 is 65074311650555.

It is a super-3 number, since 3×55505611347056³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55505611346989 and 55505611347007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18434276591 + ... + 18434279601.

It is an arithmetic number, because the mean of its divisors is an integer number (756340091136).

Almost surely, 2^{55505611347056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55505611347056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60507207290880).

55505611347056 is an abundant number, since it is smaller than the sum of its proper divisors (65508803234704).

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

55505611347056 is a wasteful number, since it uses less digits than its factorization.

55505611347056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015 (or 7009 counting only the distinct ones).

The product of its (nonzero) digits is 9450000, while the sum is 53.

The spelling of 55505611347056 in words is "fifty-five trillion, five hundred five billion, six hundred eleven million, three hundred forty-seven thousand, fifty-six".