49457181 has 16 divisors (see below), whose sum is σ = 67950080. Its totient is φ = 31978800.

The previous prime is 49457179. The next prime is 49457227. The reversal of 49457181 is 18175494.

49457181 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 49457181 - 2¹ = 49457179 is a prime.

It is a super-2 number, since 2×49457181² = 4892025504933522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49457581) 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 15 ways as a sum of consecutive naturals, for example, 18210 + ... + 20748.

It is an arithmetic number, because the mean of its divisors is an integer number (4246880).

Almost surely, 2^49457181 is an apocalyptic number.

It is an amenable number.

49457181 is a deficient number, since it is larger than the sum of its proper divisors (18492899).

49457181 is a wasteful number, since it uses less digits than its factorization.

49457181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736.

The product of its digits is 40320, while the sum is 39.

The square root of 49457181 is about 7032.5799675510. The cubic root of 49457181 is about 367.0651212067.

It can be divided in two parts, 494 and 57181, that added together give a palindrome (57675).

The spelling of 49457181 in words is "forty-nine million, four hundred fifty-seven thousand, one hundred eighty-one".