55055968445 has 4 divisors (see below), whose sum is σ = 66067162140. Its totient is φ = 44044774752.

The previous prime is 55055968433. The next prime is 55055968483. The reversal of 55055968445 is 54486955055.

It is a happy number.

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 27914723929 + 27141244516 = 167077^2 + 164746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55055968445 is a prime.

It is a super-2 number, since 2×55055968445² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5505596840 + ... + 5505596849.

It is an arithmetic number, because the mean of its divisors is an integer number (16516790535).

Almost surely, 2^55055968445 is an apocalyptic number.

It is an amenable number.

55055968445 is a deficient number, since it is larger than the sum of its proper divisors (11011193695).

55055968445 is a wasteful number, since it uses less digits than its factorization.

55055968445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011193694.

The product of its (nonzero) digits is 21600000, while the sum is 56.

The spelling of 55055968445 in words is "fifty-five billion, fifty-five million, nine hundred sixty-eight thousand, four hundred forty-five".