49881825 has 168 divisors, whose sum is σ = 117099648. Its totient is φ = 20528640.

The previous prime is 49881817. The next prime is 49881829. The reversal of 49881825 is 52818894.

It is a happy number.

49881825 is a `hidden beast` number, since 498 + 81 + 82 + 5 = 666.

49881825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49881825 - 2³ = 49881817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (49881829) 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 167 ways as a sum of consecutive naturals, for example, 2168764 + ... + 2168786.

Almost surely, 2^49881825 is an apocalyptic number.

49881825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49881825 is an abundant number, since it is smaller than the sum of its proper divisors (67217823).

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

49881825 is a wasteful number, since it uses less digits than its factorization.

49881825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 55 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 49881825 is about 7062.7066341453. The cubic root of 49881825 is about 368.1126806208.

The spelling of 49881825 in words is "forty-nine million, eight hundred eighty-one thousand, eight hundred twenty-five".