55745098817 has 4 divisors (see below), whose sum is σ = 55753504596. Its totient is φ = 55736693040.

The previous prime is 55745098793. The next prime is 55745098847. The reversal of 55745098817 is 71889054755.

55745098817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 236104²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 820020496 + 54925078321 = 28636^2 + 234361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55745098817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55745098847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4192934 + ... + 4206207.

It is an arithmetic number, because the mean of its divisors is an integer number (13938376149).

Almost surely, 2^55745098817 is an apocalyptic number.

It is an amenable number.

55745098817 is a deficient number, since it is larger than the sum of its proper divisors (8405779).

55745098817 is an equidigital number, since it uses as much as digits as its factorization.

55745098817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405778.

The product of its (nonzero) digits is 14112000, while the sum is 59.

The spelling of 55745098817 in words is "fifty-five billion, seven hundred forty-five million, ninety-eight thousand, eight hundred seventeen".