49477155 has 64 divisors (see below), whose sum is σ = 99068928. Its totient is φ = 20528640.

The previous prime is 49477151. The next prime is 49477187. The reversal of 49477155 is 55177494.

It is a happy number.

It is a Cunningham number, because it is equal to 7034²-1.

It is not a de Polignac number, because 49477155 - 2² = 49477151 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (49477151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91185 + ... + 91725.

It is an arithmetic number, because the mean of its divisors is an integer number (1547952).

Almost surely, 2^49477155 is an apocalyptic number.

49477155 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

49477155 is a wasteful number, since it uses less digits than its factorization.

49477155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 176400, while the sum is 42.

The square root of 49477155 is about 7033.9999289167. Note that the first 4 decimals coincide. The cubic root of 49477155 is about 367.1145294139.

The spelling of 49477155 in words is "forty-nine million, four hundred seventy-seven thousand, one hundred fifty-five".