49821568 has 16 divisors (see below), whose sum is σ = 99254160. Its totient is φ = 24910720.

The previous prime is 49821539. The next prime is 49821571. The reversal of 49821568 is 86512894.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194488 + ... + 194743.

It is an arithmetic number, because the mean of its divisors is an integer number (6203385).

Almost surely, 2^49821568 is an apocalyptic number.

It is an amenable number.

49821568 is a deficient number, since it is larger than the sum of its proper divisors (49432592).

49821568 is an equidigital number, since it uses as much as digits as its factorization.

49821568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389245 (or 389233 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 49821568 is about 7058.4394875921. The cubic root of 49821568 is about 367.9643947909.

The spelling of 49821568 in words is "forty-nine million, eight hundred twenty-one thousand, five hundred sixty-eight".