49989125 has 8 divisors (see below), whose sum is σ = 62386584. Its totient is φ = 39991200.

The previous prime is 49989031. The next prime is 49989139. The reversal of 49989125 is 52198994.

49989125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4169764 + 45819361 = 2042^2 + 6769^2 .

It is not a de Polignac number, because 49989125 - 2¹⁰ = 49988101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49989125.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 199832 + ... + 200081.

It is an arithmetic number, because the mean of its divisors is an integer number (7798323).

Almost surely, 2^49989125 is an apocalyptic number.

It is an amenable number.

49989125 is a deficient number, since it is larger than the sum of its proper divisors (12397459).

49989125 is an equidigital number, since it uses as much as digits as its factorization.

49989125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399928 (or 399918 counting only the distinct ones).

The product of its digits is 233280, while the sum is 47.

The square root of 49989125 is about 7070.2987914232. The cubic root of 49989125 is about 368.3764386990.

The spelling of 49989125 in words is "forty-nine million, nine hundred eighty-nine thousand, one hundred twenty-five".