55917814505 has 8 divisors (see below), whose sum is σ = 76687288512. Its totient is φ = 38343644208.

The previous prime is 55917814501. The next prime is 55917814531. The reversal of 55917814505 is 50541871955.

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

It is a cyclic number.

It is not a de Polignac number, because 55917814505 - 2² = 55917814501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55917814501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798825887 + ... + 798825956.

It is an arithmetic number, because the mean of its divisors is an integer number (9585911064).

Almost surely, 2^55917814505 is an apocalyptic number.

It is an amenable number.

55917814505 is a deficient number, since it is larger than the sum of its proper divisors (20769474007).

55917814505 is a wasteful number, since it uses less digits than its factorization.

55917814505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597651855.

The product of its (nonzero) digits is 1260000, while the sum is 50.

The spelling of 55917814505 in words is "fifty-five billion, nine hundred seventeen million, eight hundred fourteen thousand, five hundred five".