49866555825 has 96 divisors (see below), whose sum is σ = 95049630720. Its totient is φ = 25604812800.

The previous prime is 49866555769. The next prime is 49866555859. The reversal of 49866555825 is 52855566894.

49866555825 is a `hidden beast` number, since 49 + 8 + 6 + 6 + 5 + 5 + 582 + 5 = 666.

It is not a de Polignac number, because 49866555825 - 2⁹ = 49866555313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4116177 + ... + 4128273.

It is an arithmetic number, because the mean of its divisors is an integer number (990100320).

Almost surely, 2^49866555825 is an apocalyptic number.

49866555825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49866555825 is a deficient number, since it is larger than the sum of its proper divisors (45183074895).

49866555825 is a wasteful number, since it uses less digits than its factorization.

49866555825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12344 (or 12333 counting only the distinct ones).

The product of its digits is 103680000, while the sum is 63.

The spelling of 49866555825 in words is "forty-nine billion, eight hundred sixty-six million, five hundred fifty-five thousand, eight hundred twenty-five".