50550277997 has 2 divisors, whose sum is σ = 50550277998. Its totient is φ = 50550277996.

The previous prime is 50550277991. The next prime is 50550278011. The reversal of 50550277997 is 79977205505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33725853316 + 16824424681 = 183646^2 + 129709^2 .

It is a cyclic number.

It is not a de Polignac number, because 50550277997 - 2¹⁸ = 50550015853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50550277991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25275138998 + 25275138999.

It is an arithmetic number, because the mean of its divisors is an integer number (25275138999).

Almost surely, 2^50550277997 is an apocalyptic number.

It is an amenable number.

50550277997 is a deficient number, since it is larger than the sum of its proper divisors (1).

50550277997 is an equidigital number, since it uses as much as digits as its factorization.

50550277997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6945750, while the sum is 56.

The spelling of 50550277997 in words is "fifty billion, five hundred fifty million, two hundred seventy-seven thousand, nine hundred ninety-seven".