49005881 has 4 divisors (see below), whose sum is σ = 49070052. Its totient is φ = 48941712.

The previous prime is 49005829. The next prime is 49005889. The reversal of 49005881 is 18850094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9517225 + 39488656 = 3085^2 + 6284^2 .

It is a cyclic number.

It is not a de Polignac number, because 49005881 - 2²² = 44811577 is a prime.

It is a super-2 number, since 2×49005881² = 4803152745172322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49005889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30926 + ... + 32471.

It is an arithmetic number, because the mean of its divisors is an integer number (12267513).

Almost surely, 2^49005881 is an apocalyptic number.

It is an amenable number.

49005881 is a deficient number, since it is larger than the sum of its proper divisors (64171).

49005881 is an equidigital number, since it uses as much as digits as its factorization.

49005881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64170.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 49005881 is about 7000.4200588250. The cubic root of 49005881 is about 365.9452101288.

The spelling of 49005881 in words is "forty-nine million, five thousand, eight hundred eighty-one".