49965977 has 2 divisors, whose sum is σ = 49965978. Its totient is φ = 49965976.

The previous prime is 49965973. The next prime is 49965997. The reversal of 49965977 is 77956994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45981961 + 3984016 = 6781^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 49965977 - 2² = 49965973 is a prime.

It is not a weakly prime, because it can be changed into another prime (49965973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24982988 + 24982989.

It is an arithmetic number, because the mean of its divisors is an integer number (24982989).

Almost surely, 2^49965977 is an apocalyptic number.

It is an amenable number.

49965977 is a deficient number, since it is larger than the sum of its proper divisors (1).

49965977 is an equidigital number, since it uses as much as digits as its factorization.

49965977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 56.

The square root of 49965977 is about 7068.6616130637. The cubic root of 49965977 is about 368.3195697011.

The spelling of 49965977 in words is "forty-nine million, nine hundred sixty-five thousand, nine hundred seventy-seven".