55463605669 has 4 divisors (see below), whose sum is σ = 55868449644. Its totient is φ = 55058761696.

The previous prime is 55463605661. The next prime is 55463605723. The reversal of 55463605669 is 96650636455.

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 36295203169 + 19168402500 = 190513^2 + 138450^2 .

It is a cyclic number.

It is not a de Polignac number, because 55463605669 - 2³ = 55463605661 is a prime.

It is a super-2 number, since 2×55463605669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55463605661) 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, 202421782 + ... + 202422055.

It is an arithmetic number, because the mean of its divisors is an integer number (13967112411).

Almost surely, 2^55463605669 is an apocalyptic number.

It is an amenable number.

55463605669 is a deficient number, since it is larger than the sum of its proper divisors (404843975).

55463605669 is a wasteful number, since it uses less digits than its factorization.

55463605669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404843974.

The product of its (nonzero) digits is 17496000, while the sum is 55.

The spelling of 55463605669 in words is "fifty-five billion, four hundred sixty-three million, six hundred five thousand, six hundred sixty-nine".