55780758330 has 64 divisors (see below), whose sum is σ = 146073189888. Its totient is φ = 13519920960.

The previous prime is 55780758329. The next prime is 55780758359. The reversal of 55780758330 is 3385708755.

It is a happy number.

It is a super-2 number, since 2×55780758330² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2020077 + ... + 2047503.

It is an arithmetic number, because the mean of its divisors is an integer number (2282393592).

Almost surely, 2^55780758330 is an apocalyptic number.

55780758330 is an abundant number, since it is smaller than the sum of its proper divisors (90292431558).

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

55780758330 is a wasteful number, since it uses less digits than its factorization.

55780758330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33611.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 55780758330 in words is "fifty-five billion, seven hundred eighty million, seven hundred fifty-eight thousand, three hundred thirty".