506235453631 has 4 divisors (see below), whose sum is σ = 506236902064. Its totient is φ = 506234005200.

The previous prime is 506235453629. The next prime is 506235453673. The reversal of 506235453631 is 136354532605.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 506235453631 - 2¹ = 506235453629 is a prime.

It is a super-2 number, since 2×506235453631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506235453601) 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, 159451 + ... + 1018771.

It is an arithmetic number, because the mean of its divisors is an integer number (126559225516).

Almost surely, 2^506235453631 is an apocalyptic number.

506235453631 is a deficient number, since it is larger than the sum of its proper divisors (1448433).

506235453631 is an equidigital number, since it uses as much as digits as its factorization.

506235453631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448432.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 506235453631 in words is "five hundred six billion, two hundred thirty-five million, four hundred fifty-three thousand, six hundred thirty-one".