20000452531 has 8 divisors (see below), whose sum is σ = 20331743328. Its totient is φ = 19669272000.

The previous prime is 20000452523. The next prime is 20000452561. The reversal of 20000452531 is 13525400002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000452531 - 2³ = 20000452523 is a prime.

It is a super-2 number, since 2×20000452531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000452561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390111 + ... + 438391.

It is an arithmetic number, because the mean of its divisors is an integer number (2541467916).

Almost surely, 2^20000452531 is an apocalyptic number.

20000452531 is a deficient number, since it is larger than the sum of its proper divisors (331290797).

20000452531 is an equidigital number, since it uses as much as digits as its factorization.

20000452531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55133.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20000452531 its reverse (13525400002), we get a palindrome (33525852533).

The spelling of 20000452531 in words is "twenty billion, four hundred fifty-two thousand, five hundred thirty-one".