57642617 has 2 divisors, whose sum is σ = 57642618. Its totient is φ = 57642616.

The previous prime is 57642593. The next prime is 57642643. The reversal of 57642617 is 71624675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33396841 + 24245776 = 5779^2 + 4924^2 .

It is a cyclic number.

It is not a de Polignac number, because 57642617 - 2⁶ = 57642553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57642647) 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, 28821308 + 28821309.

It is an arithmetic number, because the mean of its divisors is an integer number (28821309).

Almost surely, 2^57642617 is an apocalyptic number.

It is an amenable number.

57642617 is a deficient number, since it is larger than the sum of its proper divisors (1).

57642617 is an equidigital number, since it uses as much as digits as its factorization.

57642617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 57642617 is about 7592.2735066645. The cubic root of 57642617 is about 386.2909763365.

The spelling of 57642617 in words is "fifty-seven million, six hundred forty-two thousand, six hundred seventeen".