49554181 has 4 divisors (see below), whose sum is σ = 49831200. Its totient is φ = 49277164.

The previous prime is 49554157. The next prime is 49554187. The reversal of 49554181 is 18145594.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18145594 = 2 ⋅9072797.

It is a cyclic number.

It is not a de Polignac number, because 49554181 - 2¹⁷ = 49423109 is a prime.

It is a super-2 number, since 2×49554181² = 4911233709161522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49554181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49554187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138241 + ... + 138598.

It is an arithmetic number, because the mean of its divisors is an integer number (12457800).

Almost surely, 2^49554181 is an apocalyptic number.

It is an amenable number.

49554181 is a deficient number, since it is larger than the sum of its proper divisors (277019).

49554181 is a wasteful number, since it uses less digits than its factorization.

49554181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277018.

The product of its digits is 28800, while the sum is 37.

The square root of 49554181 is about 7039.4730626660. The cubic root of 49554181 is about 367.3049385186.

The spelling of 49554181 in words is "forty-nine million, five hundred fifty-four thousand, one hundred eighty-one".