55502177 has 2 divisors, whose sum is σ = 55502178. Its totient is φ = 55502176.

The previous prime is 55502147. The next prime is 55502179. The reversal of 55502177 is 77120555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 22886656 = 5711^2 + 4784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55502177 is a prime.

Together with 55502179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55502179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27751088 + 27751089.

It is an arithmetic number, because the mean of its divisors is an integer number (27751089).

Almost surely, 2^55502177 is an apocalyptic number.

It is an amenable number.

55502177 is a deficient number, since it is larger than the sum of its proper divisors (1).

55502177 is an equidigital number, since it uses as much as digits as its factorization.

55502177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 55502177 is about 7449.9783221161. The cubic root of 55502177 is about 381.4491686388.

The spelling of 55502177 in words is "fifty-five million, five hundred two thousand, one hundred seventy-seven".