55132944445 has 4 divisors (see below), whose sum is σ = 66159533340. Its totient is φ = 44106355552.

The previous prime is 55132944431. The next prime is 55132944473. The reversal of 55132944445 is 54444923155.

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 41151773881 + 13981170564 = 202859^2 + 118242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55132944445 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55132944395 and 55132944404.

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, 5513294440 + ... + 5513294449.

It is an arithmetic number, because the mean of its divisors is an integer number (16539883335).

Almost surely, 2^55132944445 is an apocalyptic number.

It is an amenable number.

55132944445 is a deficient number, since it is larger than the sum of its proper divisors (11026588895).

55132944445 is a wasteful number, since it uses less digits than its factorization.

55132944445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026588894.

The product of its digits is 1728000, while the sum is 46.

The spelling of 55132944445 in words is "fifty-five billion, one hundred thirty-two million, nine hundred forty-four thousand, four hundred forty-five".