50513012647 has 4 divisors (see below), whose sum is σ = 53171592280. Its totient is φ = 47854433016.

The previous prime is 50513012633. The next prime is 50513012653. The reversal of 50513012647 is 74621031505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74621031505 = 5 ⋅14924206301.

It is a cyclic number.

It is not a de Polignac number, because 50513012647 - 2⁷ = 50513012519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50513012677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329289788 + ... + 1329289825.

It is an arithmetic number, because the mean of its divisors is an integer number (13292898070).

Almost surely, 2^50513012647 is an apocalyptic number.

50513012647 is a deficient number, since it is larger than the sum of its proper divisors (2658579633).

50513012647 is a wasteful number, since it uses less digits than its factorization.

50513012647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658579632.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 50513012647 in words is "fifty billion, five hundred thirteen million, twelve thousand, six hundred forty-seven".