99555054511 has 4 divisors (see below), whose sum is σ = 108605514024. Its totient is φ = 90504595000.

The previous prime is 99555054497. The next prime is 99555054523. The reversal of 99555054511 is 11545055599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99555054511 is a prime.

It is a super-2 number, since 2×99555054511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99555054551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4525229740 + ... + 4525229761.

It is an arithmetic number, because the mean of its divisors is an integer number (27151378506).

Almost surely, 2^99555054511 is an apocalyptic number.

99555054511 is a deficient number, since it is larger than the sum of its proper divisors (9050459513).

99555054511 is a wasteful number, since it uses less digits than its factorization.

99555054511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9050459512.

The product of its (nonzero) digits is 1012500, while the sum is 49.

The spelling of 99555054511 in words is "ninety-nine billion, five hundred fifty-five million, fifty-four thousand, five hundred eleven".