55738717 has 2 divisors, whose sum is σ = 55738718. Its totient is φ = 55738716.

The previous prime is 55738693. The next prime is 55738751. The reversal of 55738717 is 71783755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49716601 + 6022116 = 7051^2 + 2454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55738717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55738517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27869358 + 27869359.

It is an arithmetic number, because the mean of its divisors is an integer number (27869359).

Almost surely, 2^55738717 is an apocalyptic number.

It is an amenable number.

55738717 is a deficient number, since it is larger than the sum of its proper divisors (1).

55738717 is an equidigital number, since it uses as much as digits as its factorization.

55738717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205800, while the sum is 43.

The square root of 55738717 is about 7465.8366577364. The cubic root of 55738717 is about 381.9902892189.

The spelling of 55738717 in words is "fifty-five million, seven hundred thirty-eight thousand, seven hundred seventeen".