55555500099 has 64 divisors (see below), whose sum is σ = 84509319168. Its totient is φ = 32168572800.

The previous prime is 55555500089. The next prime is 55555500101. The reversal of 55555500099 is 99000555555.

It is not a de Polignac number, because 55555500099 - 2⁷ = 55555499971 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (55555500019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17343232 + ... + 17346434.

It is an arithmetic number, because the mean of its divisors is an integer number (1320458112).

Almost surely, 2^55555500099 is an apocalyptic number.

55555500099 is a deficient number, since it is larger than the sum of its proper divisors (28953819069).

55555500099 is a wasteful number, since it uses less digits than its factorization.

55555500099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528.

The product of its (nonzero) digits is 1265625, while the sum is 48.

The spelling of 55555500099 in words is "fifty-five billion, five hundred fifty-five million, five hundred thousand, ninety-nine".