52416640457 has 2 divisors, whose sum is σ = 52416640458. Its totient is φ = 52416640456.

The previous prime is 52416640361. The next prime is 52416640499. The reversal of 52416640457 is 75404661425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37365276601 + 15051363856 = 193301^2 + 122684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52416640457 is a prime.

It is not a weakly prime, because it can be changed into another prime (52416840457) 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, 26208320228 + 26208320229.

It is an arithmetic number, because the mean of its divisors is an integer number (26208320229).

Almost surely, 2^52416640457 is an apocalyptic number.

It is an amenable number.

52416640457 is a deficient number, since it is larger than the sum of its proper divisors (1).

52416640457 is an equidigital number, since it uses as much as digits as its factorization.

52416640457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 52416640457 in words is "fifty-two billion, four hundred sixteen million, six hundred forty thousand, four hundred fifty-seven".