49755681 has 8 divisors (see below), whose sum is σ = 73712160. Its totient is φ = 33170436.

The previous prime is 49755653. The next prime is 49755683. The reversal of 49755681 is 18655794.

49755681 is a `hidden beast` number, since 4 + 97 + 556 + 8 + 1 = 666.

It is not a de Polignac number, because 49755681 - 2⁵ = 49755649 is a prime.

It is a super-2 number, since 2×49755681² = 4951255583547522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49755683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921375 + ... + 921428.

It is an arithmetic number, because the mean of its divisors is an integer number (9214020).

Almost surely, 2^49755681 is an apocalyptic number.

It is an amenable number.

49755681 is a deficient number, since it is larger than the sum of its proper divisors (23956479).

49755681 is a wasteful number, since it uses less digits than its factorization.

49755681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842812 (or 1842806 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 49755681 is about 7053.7706937495. The cubic root of 49755681 is about 367.8021172460.

The spelling of 49755681 in words is "forty-nine million, seven hundred fifty-five thousand, six hundred eighty-one".