49681905 has 64 divisors (see below), whose sum is σ = 103638528. Its totient is φ = 19722240.

The previous prime is 49681897. The next prime is 49681921. The reversal of 49681905 is 50918694.

It is not a de Polignac number, because 49681905 - 2³ = 49681897 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22135 + ... + 24275.

It is an arithmetic number, because the mean of its divisors is an integer number (1619352).

Almost surely, 2^49681905 is an apocalyptic number.

It is an amenable number.

49681905 is an abundant number, since it is smaller than the sum of its proper divisors (53956623).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49681905 is a wasteful number, since it uses less digits than its factorization.

49681905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 49681905 is about 7048.5392103613. The cubic root of 49681905 is about 367.6202392433.

The spelling of 49681905 in words is "forty-nine million, six hundred eighty-one thousand, nine hundred five".