55555005050 has 12 divisors (see below), whose sum is σ = 103332309486. Its totient is φ = 22222002000.

The previous prime is 55555005049. The next prime is 55555005053. The reversal of 55555005050 is 5050055555.

It can be written as a sum of positive squares in 3 ways, for example, as 38725910521 + 16829094529 = 196789^2 + 129727^2 .

It is a super-2 number, since 2×55555005050² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55555005050.

It is not an unprimeable number, because it can be changed into a prime (55555005053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555550001 + ... + 555550100.

Almost surely, 2^55555005050 is an apocalyptic number.

55555005050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55555005050 is a deficient number, since it is larger than the sum of its proper divisors (47777304436).

55555005050 is a wasteful number, since it uses less digits than its factorization.

55555005050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111100113 (or 1111100108 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55555005050 in words is "fifty-five billion, five hundred fifty-five million, five thousand, fifty".