55112209152 has 576 divisors, whose sum is σ = 208573553664. Its totient is φ = 12433489920.

The previous prime is 55112209151. The next prime is 55112209157. The reversal of 55112209152 is 25190221155.

It is a super-2 number, since 2×55112209152² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (55112209151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13066948 + ... + 13071164.

It is an arithmetic number, because the mean of its divisors is an integer number (362106864).

Almost surely, 2^55112209152 is an apocalyptic number.

55112209152 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 55112209152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104286776832).

55112209152 is an abundant number, since it is smaller than the sum of its proper divisors (153461344512).

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

55112209152 is a wasteful number, since it uses less digits than its factorization.

55112209152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284 (or 4270 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 55112209152 in words is "fifty-five billion, one hundred twelve million, two hundred nine thousand, one hundred fifty-two".