20733051025 has 6 divisors (see below), whose sum is σ = 25708983302. Its totient is φ = 16586440800.

The previous prime is 20733051019. The next prime is 20733051067. The reversal of 20733051025 is 52015033702.

It can be written as a sum of positive squares in 3 ways, for example, as 207331201 + 20525719824 = 14399^2 + 143268^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20733051025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20733050984 and 20733051002.

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, 414660996 + ... + 414661045.

Almost surely, 2^20733051025 is an apocalyptic number.

20733051025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20733051025 is a deficient number, since it is larger than the sum of its proper divisors (4975932277).

20733051025 is an equidigital number, since it uses as much as digits as its factorization.

20733051025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829322051 (or 829322046 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

Adding to 20733051025 its reverse (52015033702), we get a palindrome (72748084727).

The spelling of 20733051025 in words is "twenty billion, seven hundred thirty-three million, fifty-one thousand, twenty-five".