49557728 has 36 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 22524480.

The previous prime is 49557679. The next prime is 49557743. The reversal of 49557728 is 82775594.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2528 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (2979200).

Almost surely, 2^49557728 is an apocalyptic number.

It is an amenable number.

49557728 is an abundant number, since it is smaller than the sum of its proper divisors (57693472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49557728 is a wasteful number, since it uses less digits than its factorization.

49557728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831 (or 12812 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 49557728 is about 7039.7249946287. The cubic root of 49557728 is about 367.3137019873.

The spelling of 49557728 in words is "forty-nine million, five hundred fifty-seven thousand, seven hundred twenty-eight".