55906099724569 has 2 divisors, whose sum is σ = 55906099724570. Its totient is φ = 55906099724568.

The previous prime is 55906099724561. The next prime is 55906099724669. The reversal of 55906099724569 is 96542799060955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34863356430400 + 21042743294169 = 5904520^2 + 4587237^2 .

It is a cyclic number.

It is not a de Polignac number, because 55906099724569 - 2³ = 55906099724561 is a prime.

It is a super-2 number, since 2×55906099724569² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55906099724495 and 55906099724504.

It is not a weakly prime, because it can be changed into another prime (55906099724561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27953049862284 + 27953049862285.

It is an arithmetic number, because the mean of its divisors is an integer number (27953049862285).

Almost surely, 2^{55906099724569} is an apocalyptic number.

It is an amenable number.

55906099724569 is a deficient number, since it is larger than the sum of its proper divisors (1).

55906099724569 is an equidigital number, since it uses as much as digits as its factorization.

55906099724569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372000, while the sum is 76.

The spelling of 55906099724569 in words is "fifty-five trillion, nine hundred six billion, ninety-nine million, seven hundred twenty-four thousand, five hundred sixty-nine".