49815812 has 12 divisors (see below), whose sum is σ = 87284736. Its totient is φ = 24877320.

The previous prime is 49815811. The next prime is 49815827. The reversal of 49815812 is 21851894.

It is not an unprimeable number, because it can be changed into a prime (49815811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3764 + ... + 10667.

It is an arithmetic number, because the mean of its divisors is an integer number (7273728).

Almost surely, 2^49815812 is an apocalyptic number.

It is an amenable number.

49815812 is a deficient number, since it is larger than the sum of its proper divisors (37468924).

49815812 is a wasteful number, since it uses less digits than its factorization.

49815812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15298 (or 15296 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 49815812 is about 7058.0317369646. The cubic root of 49815812 is about 367.9502236550.

The spelling of 49815812 in words is "forty-nine million, eight hundred fifteen thousand, eight hundred twelve".