20534452000 has 48 divisors (see below), whose sum is σ = 50453158392. Its totient is φ = 8213779200.

The previous prime is 20534451961. The next prime is 20534452039. The reversal of 20534452000 is 25443502.

It is an interprime number because it is at equal distance from previous prime (20534451961) and next prime (20534452039).

It can be written as a sum of positive squares in 4 ways, for example, as 3359825296 + 17174626704 = 57964^2 + 131052^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

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, 2562807 + ... + 2570806.

Almost surely, 2^20534452000 is an apocalyptic number.

20534452000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20534452000 is an abundant number, since it is smaller than the sum of its proper divisors (29918706392).

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

20534452000 is an equidigital number, since it uses as much as digits as its factorization.

20534452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133638 (or 5133620 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 20534452000 its reverse (25443502), we get a palindrome (20559895502).

The spelling of 20534452000 in words is "twenty billion, five hundred thirty-four million, four hundred fifty-two thousand".