55717001 has 2 divisors, whose sum is σ = 55717002. Its totient is φ = 55717000.

The previous prime is 55716989. The next prime is 55717019. The reversal of 55717001 is 10071755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45630025 + 10086976 = 6755^2 + 3176^2 .

It is a cyclic number.

It is not a de Polignac number, because 55717001 - 2¹⁰ = 55715977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55717021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27858500 + 27858501.

It is an arithmetic number, because the mean of its divisors is an integer number (27858501).

Almost surely, 2^55717001 is an apocalyptic number.

It is an amenable number.

55717001 is a deficient number, since it is larger than the sum of its proper divisors (1).

55717001 is an equidigital number, since it uses as much as digits as its factorization.

55717001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 55717001 is about 7464.3821579552. The cubic root of 55717001 is about 381.9406745220.

Adding to 55717001 its reverse (10071755), we get a palindrome (65788756).

The spelling of 55717001 in words is "fifty-five million, seven hundred seventeen thousand, one".