55607120817 has 4 divisors (see below), whose sum is σ = 74142827760. Its totient is φ = 37071413876.

The previous prime is 55607120791. The next prime is 55607120837. The reversal of 55607120817 is 71802170655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55607120817 - 2⁶ = 55607120753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55607120837) 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 3 ways as a sum of consecutive naturals, for example, 9267853467 + ... + 9267853472.

It is an arithmetic number, because the mean of its divisors is an integer number (18535706940).

Almost surely, 2^55607120817 is an apocalyptic number.

It is an amenable number.

55607120817 is a deficient number, since it is larger than the sum of its proper divisors (18535706943).

55607120817 is a wasteful number, since it uses less digits than its factorization.

55607120817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18535706942.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 55607120817 in words is "fifty-five billion, six hundred seven million, one hundred twenty thousand, eight hundred seventeen".