50261257 has 2 divisors, whose sum is σ = 50261258. Its totient is φ = 50261256.

The previous prime is 50261209. The next prime is 50261291. The reversal of 50261257 is 75216205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32444416 + 17816841 = 5696^2 + 4221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50261257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50261297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25130628 + 25130629.

It is an arithmetic number, because the mean of its divisors is an integer number (25130629).

Almost surely, 2^50261257 is an apocalyptic number.

It is an amenable number.

50261257 is a deficient number, since it is larger than the sum of its proper divisors (1).

50261257 is an equidigital number, since it uses as much as digits as its factorization.

50261257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 50261257 is about 7089.5174024753. The cubic root of 50261257 is about 369.0436882001.

The spelling of 50261257 in words is "fifty million, two hundred sixty-one thousand, two hundred fifty-seven".