20514321225 has 36 divisors (see below), whose sum is σ = 38104307696. Its totient is φ = 10940968080.

The previous prime is 20514321203. The next prime is 20514321229. The reversal of 20514321225 is 52212341502.

20514321225 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 432 + 1 + 225 = 666.

It is not a de Polignac number, because 20514321225 - 2⁷ = 20514321097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20514321229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1682347 + ... + 1694496.

Almost surely, 2^20514321225 is an apocalyptic number.

20514321225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20514321225 is a deficient number, since it is larger than the sum of its proper divisors (17589986471).

20514321225 is an equidigital number, since it uses as much as digits as its factorization.

20514321225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376868 (or 3376851 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 20514321225 its reverse (52212341502), we get a palindrome (72726662727).

The spelling of 20514321225 in words is "twenty billion, five hundred fourteen million, three hundred twenty-one thousand, two hundred twenty-five".