50728491 has 32 divisors (see below), whose sum is σ = 82790400. Its totient is φ = 30443040.

The previous prime is 50728471. The next prime is 50728523. The reversal of 50728491 is 19482705.

It is not a de Polignac number, because 50728491 - 2¹⁷ = 50597419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50728441) 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 31 ways as a sum of consecutive naturals, for example, 31590 + ... + 33156.

It is an arithmetic number, because the mean of its divisors is an integer number (2587200).

Almost surely, 2^50728491 is an apocalyptic number.

50728491 is a deficient number, since it is larger than the sum of its proper divisors (32061909).

50728491 is a wasteful number, since it uses less digits than its factorization.

50728491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 50728491 is about 7122.3936285493. The cubic root of 50728491 is about 370.1837193285.

The spelling of 50728491 in words is "fifty million, seven hundred twenty-eight thousand, four hundred ninety-one".