55625815205 has 8 divisors (see below), whose sum is σ = 66759408672. Its totient is φ = 44495031888.

The previous prime is 55625815181. The next prime is 55625815249. The reversal of 55625815205 is 50251852655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55625815205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 658739 + ... + 738368.

It is an arithmetic number, because the mean of its divisors is an integer number (8344926084).

Almost surely, 2^55625815205 is an apocalyptic number.

It is an amenable number.

55625815205 is a deficient number, since it is larger than the sum of its proper divisors (11133593467).

55625815205 is a wasteful number, since it uses less digits than its factorization.

55625815205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405075.

The product of its (nonzero) digits is 600000, while the sum is 44.

The spelling of 55625815205 in words is "fifty-five billion, six hundred twenty-five million, eight hundred fifteen thousand, two hundred five".