50998563 has 36 divisors (see below), whose sum is σ = 93490488. Its totient is φ = 26490240.

The previous prime is 50998553. The next prime is 50998579. The reversal of 50998563 is 36589905.

50998563 is a `hidden beast` number, since 509 + 9 + 85 + 63 = 666.

It is not a de Polignac number, because 50998563 - 2⁶ = 50998499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50998553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 406 + ... + 10107.

It is an arithmetic number, because the mean of its divisors is an integer number (2596958).

Almost surely, 2^50998563 is an apocalyptic number.

50998563 is a deficient number, since it is larger than the sum of its proper divisors (42491925).

50998563 is a wasteful number, since it uses less digits than its factorization.

50998563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10544 (or 10534 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 50998563 is about 7141.3278177101. The cubic root of 50998563 is about 370.8394938785.

The spelling of 50998563 in words is "fifty million, nine hundred ninety-eight thousand, five hundred sixty-three".