50610549981 has 8 divisors (see below), whose sum is σ = 68487908704. Its totient is φ = 33236778960.

The previous prime is 50610549973. The next prime is 50610550027. The reversal of 50610549981 is 18994501605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50610549981 - 2³ = 50610549973 is a prime.

It is a super-2 number, since 2×50610549981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50610549981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50610549481) 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, 125896690 + ... + 125897091.

It is an arithmetic number, because the mean of its divisors is an integer number (8560988588).

Almost surely, 2^50610549981 is an apocalyptic number.

It is an amenable number.

50610549981 is a deficient number, since it is larger than the sum of its proper divisors (17877358723).

50610549981 is a wasteful number, since it uses less digits than its factorization.

50610549981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251793851.

The product of its (nonzero) digits is 388800, while the sum is 48.

The spelling of 50610549981 in words is "fifty billion, six hundred ten million, five hundred forty-nine thousand, nine hundred eighty-one".