55516079 has 2 divisors, whose sum is σ = 55516080. Its totient is φ = 55516078.

The previous prime is 55516051. The next prime is 55516093. The reversal of 55516079 is 97061555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55516079 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55516049) 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, 27758039 + 27758040.

It is an arithmetic number, because the mean of its divisors is an integer number (27758040).

Almost surely, 2^55516079 is an apocalyptic number.

55516079 is a deficient number, since it is larger than the sum of its proper divisors (1).

55516079 is an equidigital number, since it uses as much as digits as its factorization.

55516079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 55516079 is about 7450.9112865474. The cubic root of 55516079 is about 381.4810140182.

It can be divided in two parts, 55 and 516079, that multiplied together give a triangular number (28384345 = T₇₅₃₄).

The spelling of 55516079 in words is "fifty-five million, five hundred sixteen thousand, seventy-nine".