50521943997 has 32 divisors (see below), whose sum is σ = 86155238400. Its totient is φ = 28661971824.

The previous prime is 50521943981. The next prime is 50521944001. The reversal of 50521943997 is 79934912505.

50521943997 is a `hidden beast` number, since 505 + 2 + 1 + 9 + 43 + 9 + 97 = 666.

It is not a de Polignac number, because 50521943997 - 2⁴ = 50521943981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50521943917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 935283 + ... + 987824.

It is an arithmetic number, because the mean of its divisors is an integer number (2692351200).

Almost surely, 2^50521943997 is an apocalyptic number.

It is an amenable number.

50521943997 is a deficient number, since it is larger than the sum of its proper divisors (35633294403).

50521943997 is a wasteful number, since it uses less digits than its factorization.

50521943997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923262 (or 1923256 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 50521943997 in words is "fifty billion, five hundred twenty-one million, nine hundred forty-three thousand, nine hundred ninety-seven".