50205557 has 2 divisors, whose sum is σ = 50205558. Its totient is φ = 50205556.

The previous prime is 50205503. The next prime is 50205569. The reversal of 50205557 is 75550205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26770276 + 23435281 = 5174^2 + 4841^2 .

It is a cyclic number.

It is not a de Polignac number, because 50205557 - 2¹² = 50201461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50205587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25102778 + 25102779.

It is an arithmetic number, because the mean of its divisors is an integer number (25102779).

Almost surely, 2^50205557 is an apocalyptic number.

It is an amenable number.

50205557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50205557 is an equidigital number, since it uses as much as digits as its factorization.

50205557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8750, while the sum is 29.

The square root of 50205557 is about 7085.5879784249. The cubic root of 50205557 is about 368.9073119089.

The spelling of 50205557 in words is "fifty million, two hundred five thousand, five hundred fifty-seven".