55017793 has 2 divisors, whose sum is σ = 55017794. Its totient is φ = 55017792.

The previous prime is 55017761. The next prime is 55017799. The reversal of 55017793 is 39771055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34433424 + 20584369 = 5868^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 55017793 - 2⁵ = 55017761 is a prime.

It is not a weakly prime, because it can be changed into another prime (55017799) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27508896 + 27508897.

It is an arithmetic number, because the mean of its divisors is an integer number (27508897).

Almost surely, 2^55017793 is an apocalyptic number.

It is an amenable number.

55017793 is a deficient number, since it is larger than the sum of its proper divisors (1).

55017793 is an equidigital number, since it uses as much as digits as its factorization.

55017793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 55017793 is about 7417.3979939059. The cubic root of 55017793 is about 380.3362513110.

The spelling of 55017793 in words is "fifty-five million, seventeen thousand, seven hundred ninety-three".