49561887 has 4 divisors (see below), whose sum is σ = 66082520. Its totient is φ = 33041256.

The previous prime is 49561879. The next prime is 49561927. The reversal of 49561887 is 78816594.

49561887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 49561887 - 2³ = 49561879 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 (49561847) 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 3 ways as a sum of consecutive naturals, for example, 8260312 + ... + 8260317.

It is an arithmetic number, because the mean of its divisors is an integer number (16520630).

Almost surely, 2^49561887 is an apocalyptic number.

49561887 is a deficient number, since it is larger than the sum of its proper divisors (16520633).

49561887 is a wasteful number, since it uses less digits than its factorization.

49561887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16520632.

The product of its digits is 483840, while the sum is 48.

The square root of 49561887 is about 7040.0203834932. The cubic root of 49561887 is about 367.3239769737.

The spelling of 49561887 in words is "forty-nine million, five hundred sixty-one thousand, eight hundred eighty-seven".