50866499520 has 168 divisors, whose sum is σ = 175096316304. Its totient is φ = 13553799168.

The previous prime is 50866499503. The next prime is 50866499521. The reversal of 50866499520 is 2599466805.

It is a happy number.

50866499520 is a `hidden beast` number, since 50 + 8 + 6 + 64 + 9 + 9 + 520 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50866499521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4103572 + ... + 4115948.

It is an arithmetic number, because the mean of its divisors is an integer number (1042239978).

Almost surely, 2^50866499520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50866499520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87548158152).

50866499520 is an abundant number, since it is smaller than the sum of its proper divisors (124229816784).

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

50866499520 is a wasteful number, since it uses less digits than its factorization.

50866499520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827 (or 13814 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 50866499520 in words is "fifty billion, eight hundred sixty-six million, four hundred ninety-nine thousand, five hundred twenty".