20425010572 has 6 divisors (see below), whose sum is σ = 35743768508. Its totient is φ = 10212505284.

The previous prime is 20425010569. The next prime is 20425010603. The reversal of 20425010572 is 27501052402.

It is a self number, because there is not a number n which added to its sum of digits gives 20425010572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553126318 + ... + 2553126325.

Almost surely, 2^20425010572 is an apocalyptic number.

It is an amenable number.

20425010572 is a deficient number, since it is larger than the sum of its proper divisors (15318757936).

20425010572 is a wasteful number, since it uses less digits than its factorization.

20425010572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106252647 (or 5106252645 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

Adding to 20425010572 its reverse (27501052402), we get a palindrome (47926062974).

The spelling of 20425010572 in words is "twenty billion, four hundred twenty-five million, ten thousand, five hundred seventy-two".