55550055500505 has 144 divisors (see below), whose sum is σ = 100403934818304. Its totient is φ = 28388062483200.

The previous prime is 55550055500497. The next prime is 55550055500567. The reversal of 55550055500505 is 50500555005555.

It is not a de Polignac number, because 55550055500505 - 2³ = 55550055500497 is a prime.

It is a super-2 number, since 2×55550055500505² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 42115280236 + ... + 42115281554.

Almost surely, 2^{55550055500505} is an apocalyptic number.

It is an amenable number.

55550055500505 is a deficient number, since it is larger than the sum of its proper divisors (44853879317799).

55550055500505 is a wasteful number, since it uses less digits than its factorization.

55550055500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55550055500505 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, five hundred thousand, five hundred five".