50520145431 has 16 divisors (see below), whose sum is σ = 76999313664. Its totient is φ = 28862566464.

The previous prime is 50520145427. The next prime is 50520145439. The reversal of 50520145431 is 13454102505.

It is not a de Polignac number, because 50520145431 - 2² = 50520145427 is a prime.

It is a super-2 number, since 2×50520145431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50520145439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150750 + ... + 351803.

It is an arithmetic number, because the mean of its divisors is an integer number (4812457104).

Almost surely, 2^50520145431 is an apocalyptic number.

50520145431 is a deficient number, since it is larger than the sum of its proper divisors (26479168233).

50520145431 is a wasteful number, since it uses less digits than its factorization.

50520145431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507350.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 50520145431 its reverse (13454102505), we get a palindrome (63974247936).

The spelling of 50520145431 in words is "fifty billion, five hundred twenty million, one hundred forty-five thousand, four hundred thirty-one".