20043532225 has 6 divisors (see below), whose sum is σ = 24853979990. Its totient is φ = 16034825760.

The previous prime is 20043532211. The next prime is 20043532237. The reversal of 20043532225 is 52223534002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4951655424 + 15091876801 = 70368^2 + 122849^2 .

It is not a de Polignac number, because 20043532225 - 2⁹ = 20043531713 is a prime.

It is a super-2 number, since 2×20043532225² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20043532193 and 20043532202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400870620 + ... + 400870669.

Almost surely, 2^20043532225 is an apocalyptic number.

20043532225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20043532225 is a deficient number, since it is larger than the sum of its proper divisors (4810447765).

20043532225 is an equidigital number, since it uses as much as digits as its factorization.

20043532225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801741299 (or 801741294 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The spelling of 20043532225 in words is "twenty billion, forty-three million, five hundred thirty-two thousand, two hundred twenty-five".