49490055977 has 2 divisors, whose sum is σ = 49490055978. Its totient is φ = 49490055976.

The previous prime is 49490055943. The next prime is 49490056097. The reversal of 49490055977 is 77955009494.

49490055977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29127907561 + 20362148416 = 170669^2 + 142696^2 .

It is a cyclic number.

It is not a de Polignac number, because 49490055977 - 2⁸ = 49490055721 is a prime.

It is not a weakly prime, because it can be changed into another prime (49490055077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24745027988 + 24745027989.

It is an arithmetic number, because the mean of its divisors is an integer number (24745027989).

Almost surely, 2^49490055977 is an apocalyptic number.

It is an amenable number.

49490055977 is a deficient number, since it is larger than the sum of its proper divisors (1).

49490055977 is an equidigital number, since it uses as much as digits as its factorization.

49490055977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 49490055977 in words is "forty-nine billion, four hundred ninety million, fifty-five thousand, nine hundred seventy-seven".