50139577 has 2 divisors, whose sum is σ = 50139578. Its totient is φ = 50139576.

The previous prime is 50139559. The next prime is 50139587. The reversal of 50139577 is 77593105.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49406841 + 732736 = 7029^2 + 856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50139577 is a prime.

It is not a weakly prime, because it can be changed into another prime (50139587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25069788 + 25069789.

It is an arithmetic number, because the mean of its divisors is an integer number (25069789).

Almost surely, 2^50139577 is an apocalyptic number.

It is an amenable number.

50139577 is a deficient number, since it is larger than the sum of its proper divisors (1).

50139577 is an equidigital number, since it uses as much as digits as its factorization.

50139577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 50139577 is about 7080.9305179475. The cubic root of 50139577 is about 368.7456354171.

The spelling of 50139577 in words is "fifty million, one hundred thirty-nine thousand, five hundred seventy-seven".