55544440313 has 16 divisors (see below), whose sum is σ = 56148107904. Its totient is φ = 54944778240.

The previous prime is 55544440297. The next prime is 55544440321. The reversal of 55544440313 is 31304444555.

It is a cyclic number.

It is not a de Polignac number, because 55544440313 - 2⁴ = 55544440297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55544440513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42497006 + ... + 42498312.

It is an arithmetic number, because the mean of its divisors is an integer number (3509256744).

Almost surely, 2^55544440313 is an apocalyptic number.

It is an amenable number.

55544440313 is a deficient number, since it is larger than the sum of its proper divisors (603667591).

55544440313 is a wasteful number, since it uses less digits than its factorization.

55544440313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 55544440313 its reverse (31304444555), we get a palindrome (86848884868).

The spelling of 55544440313 in words is "fifty-five billion, five hundred forty-four million, four hundred forty thousand, three hundred thirteen".