55505000007 has 16 divisors (see below), whose sum is σ = 82233903360. Its totient is φ = 37001410200.

The previous prime is 55504999999. The next prime is 55505000027. The reversal of 55505000007 is 70000050555.

It is not a de Polignac number, because 55505000007 - 2³ = 55504999999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638782 + ... + 720452.

It is an arithmetic number, because the mean of its divisors is an integer number (5139618960).

Almost surely, 2^55505000007 is an apocalyptic number.

55505000007 is a deficient number, since it is larger than the sum of its proper divisors (26728903353).

55505000007 is a wasteful number, since it uses less digits than its factorization.

55505000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106851 (or 106845 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 27.

The spelling of 55505000007 in words is "fifty-five billion, five hundred five million, seven", and thus it is an aban number.