50557757 has 2 divisors, whose sum is σ = 50557758. Its totient is φ = 50557756.

The previous prime is 50557753. The next prime is 50557769. The reversal of 50557757 is 75775505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47045881 + 3511876 = 6859^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 50557757 - 2² = 50557753 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50557753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25278878 + 25278879.

It is an arithmetic number, because the mean of its divisors is an integer number (25278879).

Almost surely, 2^50557757 is an apocalyptic number.

It is an amenable number.

50557757 is a deficient number, since it is larger than the sum of its proper divisors (1).

50557757 is an equidigital number, since it uses as much as digits as its factorization.

50557757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214375, while the sum is 41.

The square root of 50557757 is about 7110.3978088430. The cubic root of 50557757 is about 369.7679504318.

The spelling of 50557757 in words is "fifty million, five hundred fifty-seven thousand, seven hundred fifty-seven".