49155 has 16 divisors (see below), whose sum is σ = 82080. Its totient is φ = 25088.

The previous prime is 49139. The next prime is 49157. The reversal of 49155 is 55194.

49155 is nontrivially palindromic in base 2 and base 4.

It is a 9-Lehmer number, since φ(49155) divides (49155-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 49155 - 2⁴ = 49139 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

Its product of digits (900) is a multiple of the sum of its prime divisors (150).

49155 is a lucky number.

It is a nialpdrome in base 15.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (49157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379 + ... + 491.

It is an arithmetic number, because the mean of its divisors is an integer number (5130).

2⁴⁹¹⁵⁵ is an apocalyptic number.

49155 is a deficient number, since it is larger than the sum of its proper divisors (32925).

49155 is a wasteful number, since it uses less digits than its factorization.

49155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150.

The product of its digits is 900, while the sum is 24.

The square root of 49155 is about 221.7092690890. The cubic root of 49155 is about 36.6316010032.

The spelling of 49155 in words is "forty-nine thousand, one hundred fifty-five".