20425032256 has 14 divisors (see below), whose sum is σ = 40530923510. Its totient is φ = 10212516096.

The previous prime is 20425032241. The next prime is 20425032269. The reversal of 20425032256 is 65223052402.

It can be written as a sum of positive squares in only one way, i.e., 18828230656 + 1596801600 = 137216^2 + 39960^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159570501 + ... + 159570628.

It is an arithmetic number, because the mean of its divisors is an integer number (2895065965).

Almost surely, 2^20425032256 is an apocalyptic number.

It is an amenable number.

20425032256 is a deficient number, since it is larger than the sum of its proper divisors (20105891254).

20425032256 is an equidigital number, since it uses as much as digits as its factorization.

20425032256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319141141 (or 319141131 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20425032256 its reverse (65223052402), we get a palindrome (85648084658).

The spelling of 20425032256 in words is "twenty billion, four hundred twenty-five million, thirty-two thousand, two hundred fifty-six".