50531213505 has 16 divisors (see below), whose sum is σ = 80887826304. Its totient is φ = 26937352320.

The previous prime is 50531213479. The next prime is 50531213533.

50531213505 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 50531213505 - 2⁶ = 50531213441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756141 + ... + 820250.

It is an arithmetic number, because the mean of its divisors is an integer number (5055489144).

Almost surely, 2^50531213505 is an apocalyptic number.

It is an amenable number.

50531213505 is a deficient number, since it is larger than the sum of its proper divisors (30356612799).

50531213505 is a wasteful number, since it uses less digits than its factorization.

50531213505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578536.

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 50531213505 in words is "fifty billion, five hundred thirty-one million, two hundred thirteen thousand, five hundred five".