20253133225 has 36 divisors (see below), whose sum is σ = 27539011200. Its totient is φ = 14766598080.

The previous prime is 20253133211. The next prime is 20253133247. The reversal of 20253133225 is 52233135202.

It is a happy number.

It is not a de Polignac number, because 20253133225 - 2¹¹ = 20253131177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20253133193 and 20253133202.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 303436 + ... + 364114.

Almost surely, 2^20253133225 is an apocalyptic number.

20253133225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20253133225 is a deficient number, since it is larger than the sum of its proper divisors (7285877975).

20253133225 is a wasteful number, since it uses less digits than its factorization.

20253133225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60794 (or 60776 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 20253133225 its reverse (52233135202), we get a palindrome (72486268427).

The spelling of 20253133225 in words is "twenty billion, two hundred fifty-three million, one hundred thirty-three thousand, two hundred twenty-five".