20425221302352 has 40 divisors (see below), whose sum is σ = 52805650323264. Its totient is φ = 6803181901824.

The previous prime is 20425221302303. The next prime is 20425221302359. The reversal of 20425221302352 is 25320312252402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425221302359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163224273 + ... + 163349360.

Almost surely, 2^{20425221302352} is an apocalyptic number.

It is an amenable number.

20425221302352 is an abundant number, since it is smaller than the sum of its proper divisors (32380429020912).

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

20425221302352 is a wasteful number, since it uses less digits than its factorization.

20425221302352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326574947 (or 326574941 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 20425221302352 its reverse (25320312252402), we get a palindrome (45745533554754).

The spelling of 20425221302352 in words is "twenty trillion, four hundred twenty-five billion, two hundred twenty-one million, three hundred two thousand, three hundred fifty-two".