55140017 has 2 divisors, whose sum is σ = 55140018. Its totient is φ = 55140016.

The previous prime is 55140013. The next prime is 55140023. The reversal of 55140017 is 71004155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29170801 + 25969216 = 5401^2 + 5096^2 .

It is a cyclic number.

It is not a de Polignac number, because 55140017 - 2² = 55140013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55139974 and 55140001.

It is not a weakly prime, because it can be changed into another prime (55140011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27570008 + 27570009.

It is an arithmetic number, because the mean of its divisors is an integer number (27570009).

Almost surely, 2^55140017 is an apocalyptic number.

It is an amenable number.

55140017 is a deficient number, since it is larger than the sum of its proper divisors (1).

55140017 is an equidigital number, since it uses as much as digits as its factorization.

55140017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 55140017 is about 7425.6324309785. The cubic root of 55140017 is about 380.6176865478.

The spelling of 55140017 in words is "fifty-five million, one hundred forty thousand, seventeen".