55500000055 has 16 divisors (see below), whose sum is σ = 68153472000. Its totient is φ = 43368142752.

The previous prime is 55500000043. The next prime is 55500000119. The reversal of 55500000055 is 55000000555.

It is a cyclic number.

It is not a de Polignac number, because 55500000055 - 2⁷ = 55499999927 is a prime.

It is a super-2 number, since 2×55500000055² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 55499999975 and 55500000029.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119379 + ... + 353908.

It is an arithmetic number, because the mean of its divisors is an integer number (4259592000).

Almost surely, 2^55500000055 is an apocalyptic number.

55500000055 is a deficient number, since it is larger than the sum of its proper divisors (12653471945).

55500000055 is a wasteful number, since it uses less digits than its factorization.

55500000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473838.

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 55500000055 in words is "fifty-five billion, five hundred million, fifty-five", and thus it is an aban number.