55742317 has 6 divisors (see below), whose sum is σ = 58271822. Its totient is φ = 53318232.

The previous prime is 55742299. The next prime is 55742339. The reversal of 55742317 is 71324755.

It can be written as a sum of positive squares in only one way, i.e., 35212356 + 20529961 = 5934^2 + 4531^2 .

It is not a de Polignac number, because 55742317 - 2⁷ = 55742189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55742377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52158 + ... + 53215.

Almost surely, 2^55742317 is an apocalyptic number.

It is an amenable number.

55742317 is a deficient number, since it is larger than the sum of its proper divisors (2529505).

55742317 is a wasteful number, since it uses less digits than its factorization.

55742317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105419 (or 105396 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 55742317 is about 7466.0777520730. The cubic root of 55742317 is about 381.9985129187.

The spelling of 55742317 in words is "fifty-five million, seven hundred forty-two thousand, three hundred seventeen".