55108956240 has 240 divisors, whose sum is σ = 200468700432. Its totient is φ = 13486473216.

The previous prime is 55108956211. The next prime is 55108956241. The reversal of 55108956240 is 4265980155.

55108956240 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 89 + 562 + 4 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 358572096 + 54750384144 = 18936^2 + 233988^2 .

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55108956241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1602264 + ... + 1636296.

Almost surely, 2^55108956240 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 55108956240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100234350216).

55108956240 is an abundant number, since it is smaller than the sum of its proper divisors (145359744192).

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

55108956240 is a wasteful number, since it uses less digits than its factorization.

55108956240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34238 (or 34229 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 55108956240 in words is "fifty-five billion, one hundred eight million, nine hundred fifty-six thousand, two hundred forty".