55500317 has 2 divisors, whose sum is σ = 55500318. Its totient is φ = 55500316.

The previous prime is 55500299. The next prime is 55500331. The reversal of 55500317 is 71300555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 17480761 = 6166^2 + 4181^2 .

It is a cyclic number.

It is not a de Polignac number, because 55500317 - 2¹⁶ = 55434781 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55500217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750158 + 27750159.

It is an arithmetic number, because the mean of its divisors is an integer number (27750159).

Almost surely, 2^55500317 is an apocalyptic number.

It is an amenable number.

55500317 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500317 is an equidigital number, since it uses as much as digits as its factorization.

55500317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 55500317 is about 7449.8534884922. The cubic root of 55500317 is about 381.4449075243. Note that the first 3 decimals are identical.

The spelling of 55500317 in words is "fifty-five million, five hundred thousand, three hundred seventeen".