49881261 has 8 divisors (see below), whose sum is σ = 66541984. Its totient is φ = 33237360.

The previous prime is 49881259. The next prime is 49881269. The reversal of 49881261 is 16218894.

49881261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49881261 - 2¹ = 49881259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49881269) 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 7 ways as a sum of consecutive naturals, for example, 6930 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (8317748).

Almost surely, 2^49881261 is an apocalyptic number.

It is an amenable number.

49881261 is a deficient number, since it is larger than the sum of its proper divisors (16660723).

49881261 is a wasteful number, since it uses less digits than its factorization.

49881261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411.

The product of its digits is 27648, while the sum is 39.

The square root of 49881261 is about 7062.6667059971. Note that the first 3 decimals coincide. The cubic root of 49881261 is about 368.1112932328. Note that the first 3 decimals are identical.

The spelling of 49881261 in words is "forty-nine million, eight hundred eighty-one thousand, two hundred sixty-one".