49616681 has 4 divisors (see below), whose sum is σ = 51773952. Its totient is φ = 47459412.

The previous prime is 49616669. The next prime is 49616687. The reversal of 49616681 is 18661694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49616681 is a prime.

It is a super-2 number, since 2×49616681² = 4923630066911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49616687) 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, 1078601 + ... + 1078646.

It is an arithmetic number, because the mean of its divisors is an integer number (12943488).

Almost surely, 2^49616681 is an apocalyptic number.

It is an amenable number.

49616681 is a deficient number, since it is larger than the sum of its proper divisors (2157271).

49616681 is a wasteful number, since it uses less digits than its factorization.

49616681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157270.

The product of its digits is 62208, while the sum is 41.

The square root of 49616681 is about 7043.9109165293. The cubic root of 49616681 is about 367.4592942404.

The spelling of 49616681 in words is "forty-nine million, six hundred sixteen thousand, six hundred eighty-one".