50216557 has 2 divisors, whose sum is σ = 50216558. Its totient is φ = 50216556.

The previous prime is 50216533. The next prime is 50216591. The reversal of 50216557 is 75561205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30316036 + 19900521 = 5506^2 + 4461^2 .

It is a cyclic number.

It is not a de Polignac number, because 50216557 - 2¹¹ = 50214509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50216597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25108278 + 25108279.

It is an arithmetic number, because the mean of its divisors is an integer number (25108279).

Almost surely, 2^50216557 is an apocalyptic number.

It is an amenable number.

50216557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50216557 is an equidigital number, since it uses as much as digits as its factorization.

50216557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 50216557 is about 7086.3641594262. The cubic root of 50216557 is about 368.9342523801.

The spelling of 50216557 in words is "fifty million, two hundred sixteen thousand, five hundred fifty-seven".