50238521 has 2 divisors, whose sum is σ = 50238522. Its totient is φ = 50238520.

The previous prime is 50238497. The next prime is 50238547. The reversal of 50238521 is 12583205.

It is an a-pointer prime, because the next prime (50238547) can be obtained adding 50238521 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 1392400 = 6989^2 + 1180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50238521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50238581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25119260 + 25119261.

It is an arithmetic number, because the mean of its divisors is an integer number (25119261).

Almost surely, 2^50238521 is an apocalyptic number.

It is an amenable number.

50238521 is a deficient number, since it is larger than the sum of its proper divisors (1).

50238521 is an equidigital number, since it uses as much as digits as its factorization.

50238521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 50238521 is about 7087.9137269016. The cubic root of 50238521 is about 368.9880333857.

The spelling of 50238521 in words is "fifty million, two hundred thirty-eight thousand, five hundred twenty-one".