73716551 has 2 divisors, whose sum is σ = 73716552. Its totient is φ = 73716550.

The previous prime is 73716527. The next prime is 73716553. The reversal of 73716551 is 15561737.

It is a strong prime.

It is an emirp because it is prime and its reverse (15561737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73716551 - 2¹⁴ = 73700167 is a prime.

Together with 73716553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73716553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36858275 + 36858276.

It is an arithmetic number, because the mean of its divisors is an integer number (36858276).

Almost surely, 2^73716551 is an apocalyptic number.

73716551 is a deficient number, since it is larger than the sum of its proper divisors (1).

73716551 is an equidigital number, since it uses as much as digits as its factorization.

73716551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 35.

The square root of 73716551 is about 8585.8343217185. The cubic root of 73716551 is about 419.2969170394.

The spelling of 73716551 in words is "seventy-three million, seven hundred sixteen thousand, five hundred fifty-one".