99554455 has 32 divisors (see below), whose sum is σ = 160409088. Its totient is φ = 57283200.

The previous prime is 99554447. The next prime is 99554459. The reversal of 99554455 is 55445599.

It is not a de Polignac number, because 99554455 - 2³ = 99554447 is a prime.

It is a super-2 number, since 2×99554455² = 19822179020694050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99554459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4941 + ... + 14950.

It is an arithmetic number, because the mean of its divisors is an integer number (5012784).

Almost surely, 2^99554455 is an apocalyptic number.

99554455 is a deficient number, since it is larger than the sum of its proper divisors (60854633).

99554455 is a wasteful number, since it uses less digits than its factorization.

99554455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19927.

The product of its digits is 810000, while the sum is 46.

The square root of 99554455 is about 9977.6978807739. The cubic root of 99554455 is about 463.4685114724.

It can be divided in two parts, 995544 and 55, that added together give a palindrome (995599).

The spelling of 99554455 in words is "ninety-nine million, five hundred fifty-four thousand, four hundred fifty-five".