55575969313 has 2 divisors, whose sum is σ = 55575969314. Its totient is φ = 55575969312.

The previous prime is 55575969307. The next prime is 55575969343. The reversal of 55575969313 is 31396957555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40855728384 + 14720240929 = 202128^2 + 121327^2 .

It is a cyclic number.

It is not a de Polignac number, because 55575969313 - 2²¹ = 55573872161 is a prime.

It is not a weakly prime, because it can be changed into another prime (55575969343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27787984656 + 27787984657.

It is an arithmetic number, because the mean of its divisors is an integer number (27787984657).

Almost surely, 2^55575969313 is an apocalyptic number.

It is an amenable number.

55575969313 is a deficient number, since it is larger than the sum of its proper divisors (1).

55575969313 is an equidigital number, since it uses as much as digits as its factorization.

55575969313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19136250, while the sum is 58.

The spelling of 55575969313 in words is "fifty-five billion, five hundred seventy-five million, nine hundred sixty-nine thousand, three hundred thirteen".