49813155 has 144 divisors (see below), whose sum is σ = 112039200. Its totient is φ = 20321280.

The previous prime is 49813133. The next prime is 49813171. The reversal of 49813155 is 55131894.

49813155 is a `hidden beast` number, since 498 + 13 + 155 = 666.

49813155 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 49813155 - 2⁵ = 49813123 is a prime.

It is a super-2 number, since 2×49813155² = 4962700822108050, which contains 22 as substring.

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 143 ways as a sum of consecutive naturals, for example, 1214935 + ... + 1214975.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^49813155 is an apocalyptic number.

49813155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49813155 is an abundant number, since it is smaller than the sum of its proper divisors (62226045).

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

49813155 is a wasteful number, since it uses less digits than its factorization.

49813155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 104 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 49813155 is about 7057.8435091747. The cubic root of 49813155 is about 367.9436818156.

The spelling of 49813155 in words is "forty-nine million, eight hundred thirteen thousand, one hundred fifty-five".