49509055856 has 40 divisors (see below), whose sum is σ = 105704953200. Its totient is φ = 22318926336.

The previous prime is 49509055829. The next prime is 49509055859. The reversal of 49509055856 is 65855090594.

It is a super-2 number, since 2×49509055856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49509055859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2758781 + ... + 2776668.

It is an arithmetic number, because the mean of its divisors is an integer number (2642623830).

Almost surely, 2^49509055856 is an apocalyptic number.

It is an amenable number.

49509055856 is an abundant number, since it is smaller than the sum of its proper divisors (56195897344).

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

49509055856 is a wasteful number, since it uses less digits than its factorization.

49509055856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535513 (or 5535507 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 56.

The spelling of 49509055856 in words is "forty-nine billion, five hundred nine million, fifty-five thousand, eight hundred fifty-six".