20522455004 has 24 divisors (see below), whose sum is σ = 36103788000. Its totient is φ = 10207229760.

The previous prime is 20522454983. The next prime is 20522455021. The reversal of 20522455004 is 40055422502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570257 + ... + 605175.

It is an arithmetic number, because the mean of its divisors is an integer number (1504324500).

Almost surely, 2^20522455004 is an apocalyptic number.

It is an amenable number.

20522455004 is a deficient number, since it is larger than the sum of its proper divisors (15581332996).

20522455004 is a wasteful number, since it uses less digits than its factorization.

20522455004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35693 (or 35691 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

Adding to 20522455004 its reverse (40055422502), we get a palindrome (60577877506).

The spelling of 20522455004 in words is "twenty billion, five hundred twenty-two million, four hundred fifty-five thousand, four".