50545551013 has 4 divisors (see below), whose sum is σ = 50546301388. Its totient is φ = 50544800640.

The previous prime is 50545551011. The next prime is 50545551029. The reversal of 50545551013 is 31015554505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27060908004 + 23484643009 = 164502^2 + 153247^2 .

It is a cyclic number.

It is not a de Polignac number, because 50545551013 - 2¹ = 50545551011 is a prime.

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 50545551013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50545551011) 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, 262956 + ... + 412597.

It is an arithmetic number, because the mean of its divisors is an integer number (12636575347).

Almost surely, 2^50545551013 is an apocalyptic number.

It is an amenable number.

50545551013 is a deficient number, since it is larger than the sum of its proper divisors (750375).

50545551013 is an equidigital number, since it uses as much as digits as its factorization.

50545551013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750374.

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 50545551013 in words is "fifty billion, five hundred forty-five million, five hundred fifty-one thousand, thirteen".