55332802780 has 48 divisors (see below), whose sum is σ = 117179060544. Its totient is φ = 21947166720.

The previous prime is 55332802711. The next prime is 55332802787. The reversal of 55332802780 is 8720823355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55332802787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177414 + ... + 1223506.

It is an arithmetic number, because the mean of its divisors is an integer number (2441230428).

Almost surely, 2^55332802780 is an apocalyptic number.

It is an amenable number.

55332802780 is an abundant number, since it is smaller than the sum of its proper divisors (61846257764).

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

55332802780 is a wasteful number, since it uses less digits than its factorization.

55332802780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46606 (or 46604 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 55332802780 in words is "fifty-five billion, three hundred thirty-two million, eight hundred two thousand, seven hundred eighty".