49975939 has 4 divisors (see below), whose sum is σ = 53820256. Its totient is φ = 46131624.

The previous prime is 49975931. The next prime is 49975943. The reversal of 49975939 is 93957994.

49975939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49975939 - 2³ = 49975931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49975939.

It is not an unprimeable number, because it can be changed into a prime (49975931) 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 3 ways as a sum of consecutive naturals, for example, 1922139 + ... + 1922164.

It is an arithmetic number, because the mean of its divisors is an integer number (13455064).

Almost surely, 2^49975939 is an apocalyptic number.

49975939 is a deficient number, since it is larger than the sum of its proper divisors (3844317).

49975939 is a wasteful number, since it uses less digits than its factorization.

49975939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844316.

The product of its digits is 2755620, while the sum is 55.

The square root of 49975939 is about 7069.3662375067. The cubic root of 49975939 is about 368.3440460611.

The spelling of 49975939 in words is "forty-nine million, nine hundred seventy-five thousand, nine hundred thirty-nine".