55305444513 has 16 divisors (see below), whose sum is σ = 80469835776. Its totient is φ = 33507804240.

The previous prime is 55305444499. The next prime is 55305444541. The reversal of 55305444513 is 31544450355.

It is a happy number.

It is not a de Polignac number, because 55305444513 - 2¹⁸ = 55305182369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55305444563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160081 + ... + 369102.

It is an arithmetic number, because the mean of its divisors is an integer number (5029364736).

Almost surely, 2^55305444513 is an apocalyptic number.

It is an amenable number.

55305444513 is a deficient number, since it is larger than the sum of its proper divisors (25164391263).

55305444513 is a wasteful number, since it uses less digits than its factorization.

55305444513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532364.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 55305444513 its reverse (31544450355), we get a palindrome (86849894868).

The spelling of 55305444513 in words is "fifty-five billion, three hundred five million, four hundred forty-four thousand, five hundred thirteen".