55015447760 has 240 divisors, whose sum is σ = 162183119616. Its totient is φ = 17200382976.

The previous prime is 55015447681. The next prime is 55015447771. The reversal of 55015447760 is 6774451055.

55015447760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4223177 + ... + 4236183.

Almost surely, 2^55015447760 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 55015447760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81091559808).

55015447760 is an abundant number, since it is smaller than the sum of its proper divisors (107167671856).

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

55015447760 is a wasteful number, since it uses less digits than its factorization.

55015447760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130 (or 13117 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 55015447760 in words is "fifty-five billion, fifteen million, four hundred forty-seven thousand, seven hundred sixty".