55015780352 has 104 divisors (see below), whose sum is σ = 122306701440. Its totient is φ = 24572067840.

The previous prime is 55015780333. The next prime is 55015780381. The reversal of 55015780352 is 25308751055.

It is a tau number, because it is divible by the number of its divisors (104).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1634024 + ... + 1667352.

Almost surely, 2^55015780352 is an apocalyptic number.

55015780352 is a gapful number since it is divisible by the number (52) 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 55015780352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61153350720).

55015780352 is an abundant number, since it is smaller than the sum of its proper divisors (67290921088).

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

55015780352 is a wasteful number, since it uses less digits than its factorization.

55015780352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33397 (or 33375 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 55015780352 in words is "fifty-five billion, fifteen million, seven hundred eighty thousand, three hundred fifty-two".