49155678 has 96 divisors (see below), whose sum is σ = 126977760. Its totient is φ = 13628160.

The previous prime is 49155661. The next prime is 49155697. The reversal of 49155678 is 87655194.

49155678 is a `hidden beast` number, since 4 + 91 + 556 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 434950 + ... + 435062.

It is an arithmetic number, because the mean of its divisors is an integer number (1322685).

It is a vampire number, since it can be written as 6591 ⋅ 7458 (with its own digits).

Almost surely, 2^49155678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49155678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63488880).

49155678 is an abundant number, since it is smaller than the sum of its proper divisors (77822082).

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

49155678 is a wasteful number, since it uses less digits than its factorization.

49155678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 142 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 49155678 is about 7011.1110389153. Note that the first 3 decimals coincide. The cubic root of 49155678 is about 366.3176942359.

It can be divided in two parts, 491 and 55678, that added together give a square (56169 = 237²).

The spelling of 49155678 in words is "forty-nine million, one hundred fifty-five thousand, six hundred seventy-eight".