50025285281 has 2 divisors, whose sum is σ = 50025285282. Its totient is φ = 50025285280.

The previous prime is 50025285251. The next prime is 50025285319. The reversal of 50025285281 is 18258252005.

It is an a-pointer prime, because the next prime (50025285319) can be obtained adding 50025285281 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26596391056 + 23428894225 = 163084^2 + 153065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50025285281 is a prime.

It is a super-2 number, since 2×50025285281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50025285221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25012642640 + 25012642641.

It is an arithmetic number, because the mean of its divisors is an integer number (25012642641).

Almost surely, 2^50025285281 is an apocalyptic number.

It is an amenable number.

50025285281 is a deficient number, since it is larger than the sum of its proper divisors (1).

50025285281 is an equidigital number, since it uses as much as digits as its factorization.

50025285281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64000, while the sum is 38.

The spelling of 50025285281 in words is "fifty billion, twenty-five million, two hundred eighty-five thousand, two hundred eighty-one".