55500500500555 has 64 divisors (see below), whose sum is σ = 74409329000448. Its totient is φ = 39404700840960.

The previous prime is 55500500500493. The next prime is 55500500500649.

55500500500555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55500500500555 - 2¹⁵ = 55500500467787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112708759 + ... + 113200111.

It is an arithmetic number, because the mean of its divisors is an integer number (1162645765632).

Almost surely, 2^{55500500500555} is an apocalyptic number.

55500500500555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55500500500555 is a deficient number, since it is larger than the sum of its proper divisors (18908828499893).

55500500500555 is a wasteful number, since it uses less digits than its factorization.

55500500500555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491756.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55500500500555 in words is "fifty-five trillion, five hundred billion, five hundred million, five hundred thousand, five hundred fifty-five".