50556583521 has 24 divisors (see below), whose sum is σ = 76622285376. Its totient is φ = 32060841120.

The previous prime is 50556583499. The next prime is 50556583531. The reversal of 50556583521 is 12538565505.

It is a happy number.

50556583521 is a `hidden beast` number, since 5 + 0 + 5 + 565 + 83 + 5 + 2 + 1 = 666.

50556583521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50556583521 - 2⁵ = 50556583489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50556583531) 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, 637215 + ... + 712148.

It is an arithmetic number, because the mean of its divisors is an integer number (3192595224).

Almost surely, 2^50556583521 is an apocalyptic number.

It is an amenable number.

50556583521 is a deficient number, since it is larger than the sum of its proper divisors (26065701855).

50556583521 is a wasteful number, since it uses less digits than its factorization.

50556583521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349573 (or 1349570 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 45.

The spelling of 50556583521 in words is "fifty billion, five hundred fifty-six million, five hundred eighty-three thousand, five hundred twenty-one".