20005425052 has 24 divisors (see below), whose sum is σ = 38040880640. Its totient is φ = 9170567280.

The previous prime is 20005425017. The next prime is 20005425067. The reversal of 20005425052 is 25052450002.

It is a happy number.

It is a super-2 number, since 2×20005425052² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 4243278 + ... + 4247989.

Almost surely, 2^20005425052 is an apocalyptic number.

It is an amenable number.

20005425052 is a deficient number, since it is larger than the sum of its proper divisors (18035455588).

20005425052 is a wasteful number, since it uses less digits than its factorization.

20005425052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491321 (or 8491319 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

Adding to 20005425052 its reverse (25052450002), we get a palindrome (45057875054).

The spelling of 20005425052 in words is "twenty billion, five million, four hundred twenty-five thousand, fifty-two".