55011317 has 2 divisors, whose sum is σ = 55011318. Its totient is φ = 55011316.

The previous prime is 55011311. The next prime is 55011323. The reversal of 55011317 is 71311055.

It is a balanced prime because it is at equal distance from previous prime (55011311) and next prime (55011323).

It can be written as a sum of positive squares in only one way, i.e., 52432081 + 2579236 = 7241^2 + 1606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55011317 is a prime.

It is a super-4 number, since 4×55011317⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55011292 and 55011301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55011311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27505658 + 27505659.

It is an arithmetic number, because the mean of its divisors is an integer number (27505659).

Almost surely, 2^55011317 is an apocalyptic number.

It is an amenable number.

55011317 is a deficient number, since it is larger than the sum of its proper divisors (1).

55011317 is an equidigital number, since it uses as much as digits as its factorization.

55011317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 55011317 is about 7416.9614398350. The cubic root of 55011317 is about 380.3213279316.

The spelling of 55011317 in words is "fifty-five million, eleven thousand, three hundred seventeen".