49984257 has 4 divisors (see below), whose sum is σ = 66645680. Its totient is φ = 33322836.

The previous prime is 49984201. The next prime is 49984273. The reversal of 49984257 is 75248994.

49984257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49984257 - 2¹⁶ = 49918721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49984057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8330707 + ... + 8330712.

It is an arithmetic number, because the mean of its divisors is an integer number (16661420).

Almost surely, 2^49984257 is an apocalyptic number.

It is an amenable number.

49984257 is a deficient number, since it is larger than the sum of its proper divisors (16661423).

49984257 is a wasteful number, since it uses less digits than its factorization.

49984257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661422.

The product of its digits is 725760, while the sum is 48.

The square root of 49984257 is about 7069.9545260207. The cubic root of 49984257 is about 368.3644806667.

The spelling of 49984257 in words is "forty-nine million, nine hundred eighty-four thousand, two hundred fifty-seven".