55337417856 has 192 divisors, whose sum is σ = 186907231680. Its totient is φ = 15383291904.

The previous prime is 55337417851. The next prime is 55337417869. The reversal of 55337417856 is 65871473355.

55337417856 is a `hidden beast` number, since 5 + 53 + 374 + 178 + 56 = 666.

55337417856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (55337417851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205635 + ... + 391101.

It is an arithmetic number, because the mean of its divisors is an integer number (973475165).

Almost surely, 2^55337417856 is an apocalyptic number.

55337417856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55337417856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93453615840).

55337417856 is an abundant number, since it is smaller than the sum of its proper divisors (131569813824).

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

55337417856 is a wasteful number, since it uses less digits than its factorization.

55337417856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185531 (or 185516 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 55337417856 in words is "fifty-five billion, three hundred thirty-seven million, four hundred seventeen thousand, eight hundred fifty-six".