56515600649999 has 2 divisors, whose sum is σ = 56515600650000. Its totient is φ = 56515600649998.

The previous prime is 56515600649987. The next prime is 56515600650001. The reversal of 56515600649999 is 99994600651565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56515600649999 - 2⁴ = 56515600649983 is a prime.

It is a Sophie Germain prime.

Together with 56515600650001, 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 (56515600949999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28257800324999 + 28257800325000.

It is an arithmetic number, because the mean of its divisors is an integer number (28257800325000).

Almost surely, 2^{56515600649999} is an apocalyptic number.

56515600649999 is a deficient number, since it is larger than the sum of its proper divisors (1).

56515600649999 is an equidigital number, since it uses as much as digits as its factorization.

56515600649999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 708588000, while the sum is 74.

The spelling of 56515600649999 in words is "fifty-six trillion, five hundred fifteen billion, six hundred million, six hundred forty-nine thousand, nine hundred ninety-nine".