50531434451 has 4 divisors (see below), whose sum is σ = 51763908504. Its totient is φ = 49298960400.

The previous prime is 50531434409. The next prime is 50531434487. The reversal of 50531434451 is 15443413505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50531434451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50531434651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616236965 + ... + 616237046.

It is an arithmetic number, because the mean of its divisors is an integer number (12940977126).

Almost surely, 2^50531434451 is an apocalyptic number.

50531434451 is a deficient number, since it is larger than the sum of its proper divisors (1232474053).

50531434451 is a wasteful number, since it uses less digits than its factorization.

50531434451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232474052.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 50531434451 its reverse (15443413505), we get a palindrome (65974847956).

The spelling of 50531434451 in words is "fifty billion, five hundred thirty-one million, four hundred thirty-four thousand, four hundred fifty-one".