50359399281 has 81 divisors (see below), whose sum is σ = 79957274553. Its totient is φ = 30537576720.

The previous prime is 50359399249. The next prime is 50359399289. The reversal of 50359399281 is 18299395305.

The square root of 50359399281 is 224409.

It is a perfect power (a square), and thus also a powerful number.

50359399281 is a `hidden beast` number, since 5 + 0 + 359 + 3 + 9 + 9 + 281 = 666.

It is not a de Polignac number, because 50359399281 - 2⁵ = 50359399249 is a prime.

It is a super-2 number, since 2×50359399281² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (50359399289) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 396530640 + ... + 396530766.

Almost surely, 2^50359399281 is an apocalyptic number.

50359399281 is the 224409-th square number.

50359399281 is the 112205-th centered octagonal number.

It is an amenable number.

50359399281 is a deficient number, since it is larger than the sum of its proper divisors (29597875272).

50359399281 is a wasteful number, since it uses less digits than its factorization.

50359399281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 50359399281 in words is "fifty billion, three hundred fifty-nine million, three hundred ninety-nine thousand, two hundred eighty-one".