49812156 has 36 divisors (see below), whose sum is σ = 128294712. Its totient is φ = 16290144.

The previous prime is 49812149. The next prime is 49812157. The reversal of 49812156 is 65121894.

49812156 is a `hidden beast` number, since 498 + 12 + 156 = 666.

49812156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 49812156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49812157) 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 11 ways as a sum of consecutive naturals, for example, 11146 + ... + 14961.

It is an arithmetic number, because the mean of its divisors is an integer number (3563742).

Almost surely, 2^49812156 is an apocalyptic number.

It is an amenable number.

49812156 is an abundant number, since it is smaller than the sum of its proper divisors (78482556).

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

49812156 is a wasteful number, since it uses less digits than its factorization.

49812156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26170 (or 26165 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 49812156 is about 7057.7727364941. The cubic root of 49812156 is about 367.9412221026.

The spelling of 49812156 in words is "forty-nine million, eight hundred twelve thousand, one hundred fifty-six".