55309417 has 2 divisors, whose sum is σ = 55309418. Its totient is φ = 55309416.

The previous prime is 55309403. The next prime is 55309439. The reversal of 55309417 is 71490355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 9665881 = 6756^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 55309417 - 2¹⁵ = 55276649 is a prime.

It is not a weakly prime, because it can be changed into another prime (55309447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27654708 + 27654709.

It is an arithmetic number, because the mean of its divisors is an integer number (27654709).

Almost surely, 2^55309417 is an apocalyptic number.

It is an amenable number.

55309417 is a deficient number, since it is larger than the sum of its proper divisors (1).

55309417 is an equidigital number, since it uses as much as digits as its factorization.

55309417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55309417 is about 7437.0301196109. The cubic root of 55309417 is about 381.0070632906.

The spelling of 55309417 in words is "fifty-five million, three hundred nine thousand, four hundred seventeen".