55000555050 has 96 divisors (see below), whose sum is σ = 156079153152. Its totient is φ = 12556082880.

The previous prime is 55000555031. The next prime is 55000555081. The reversal of 55000555050 is 5055500055.

It is a super-2 number, since 2×55000555050² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55000554999 and 55000555017.

It is an unprimeable number.

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, 832327 + ... + 895973.

It is an arithmetic number, because the mean of its divisors is an integer number (1625824512).

Almost surely, 2^55000555050 is an apocalyptic number.

55000555050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000555050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78039576576).

55000555050 is an abundant number, since it is smaller than the sum of its proper divisors (101078598102).

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

55000555050 is a wasteful number, since it uses less digits than its factorization.

55000555050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64492 (or 64487 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 55000555050 in words is "fifty-five billion, five hundred fifty-five thousand, fifty".