531000455052 has 36 divisors (see below), whose sum is σ = 1254108832760. Its totient is φ = 174867592512.

The previous prime is 531000455033. The next prime is 531000455053. The reversal of 531000455052 is 250554000135.

It is a happy number.

It is a super-2 number, since 2×531000455052² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531000455053) 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 11 ways as a sum of consecutive naturals, for example, 3128977 + ... + 3294312.

Almost surely, 2^531000455052 is an apocalyptic number.

It is an amenable number.

531000455052 is an abundant number, since it is smaller than the sum of its proper divisors (723108377708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531000455052 is a wasteful number, since it uses less digits than its factorization.

531000455052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423462 (or 6423377 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 531000455052 its reverse (250554000135), we get a palindrome (781554455187).

The spelling of 531000455052 in words is "five hundred thirty-one billion, four hundred fifty-five thousand, fifty-two".