49810185 has 24 divisors (see below), whose sum is σ = 87314760. Its totient is φ = 26264832.

The previous prime is 49810181. The next prime is 49810199. The reversal of 49810185 is 58101894.

It can be written as a sum of positive squares in 4 ways, for example, as 992016 + 48818169 = 996^2 + 6987^2 .

It is not a de Polignac number, because 49810185 - 2² = 49810181 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (49810181) 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 23 ways as a sum of consecutive naturals, for example, 2214 + ... + 10223.

It is an arithmetic number, because the mean of its divisors is an integer number (3638115).

Almost surely, 2^49810185 is an apocalyptic number.

49810185 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49810185 is a deficient number, since it is larger than the sum of its proper divisors (37504575).

49810185 is a wasteful number, since it uses less digits than its factorization.

49810185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12537 (or 12534 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 49810185 is about 7057.6331018267. The cubic root of 49810185 is about 367.9363690588.

It can be divided in two parts, 4 and 9810185, that added together give a palindrome (9810189).

The spelling of 49810185 in words is "forty-nine million, eight hundred ten thousand, one hundred eighty-five".