99550055553 has 16 divisors (see below), whose sum is σ = 146267943360. Its totient is φ = 59836883904.

The previous prime is 99550055551. The next prime is 99550055569. The reversal of 99550055553 is 35555005599.

It is not a de Polignac number, because 99550055553 - 2¹ = 99550055551 is a prime.

It is a super-2 number, since 2×99550055553² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99550055496 and 99550055505.

It is not an unprimeable number, because it can be changed into a prime (99550055551) 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, 29679318 + ... + 29682671.

It is an arithmetic number, because the mean of its divisors is an integer number (9141746460).

Almost surely, 2^99550055553 is an apocalyptic number.

It is an amenable number.

99550055553 is a deficient number, since it is larger than the sum of its proper divisors (46717887807).

99550055553 is a wasteful number, since it uses less digits than its factorization.

99550055553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59362048.

The product of its (nonzero) digits is 3796875, while the sum is 51.

The spelling of 99550055553 in words is "ninety-nine billion, five hundred fifty million, fifty-five thousand, five hundred fifty-three".