49836544081 has 3 divisors (see below), whose sum is σ = 49836767323. Its totient is φ = 49836320840.

The previous prime is 49836544067. The next prime is 49836544097. The reversal of 49836544081 is 18044563894.

The square root of 49836544081 is 223241.

It is a perfect power (a square), and thus also a powerful number.

49836544081 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 10648382481 + 39188161600 = 103191^2 + 197960^2 .

It is not a de Polignac number, because 49836544081 - 2³³ = 41246609489 is a prime.

It is a super-2 number, since 2×49836544081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49836544031) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 111621 + ... + 334861.

Almost surely, 2^49836544081 is an apocalyptic number.

49836544081 is the 223241-st square number.

49836544081 is the 111621-st centered octagonal number.

It is an amenable number.

49836544081 is a deficient number, since it is larger than the sum of its proper divisors (223242).

49836544081 is an frugal number, since it uses more digits than its factorization.

49836544081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446482 (or 223241 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 49836544081 in words is "forty-nine billion, eight hundred thirty-six million, five hundred forty-four thousand, eighty-one".