20010525404444 has 12 divisors (see below), whose sum is σ = 35285735637768. Its totient is φ = 9928886650800.

The previous prime is 20010525404437. The next prime is 20010525404449. The reversal of 20010525404444 is 44440452501002.

It is a happy number.

It is a super-2 number, since 2×20010525404444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010525404449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19094012267 + ... + 19094013314.

It is an arithmetic number, because the mean of its divisors is an integer number (2940477969814).

Almost surely, 2^{20010525404444} is an apocalyptic number.

It is an amenable number.

20010525404444 is a deficient number, since it is larger than the sum of its proper divisors (15275210233324).

20010525404444 is a wasteful number, since it uses less digits than its factorization.

20010525404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38188025716 (or 38188025714 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 20010525404444 its reverse (44440452501002), we get a palindrome (64450977905446).

The spelling of 20010525404444 in words is "twenty trillion, ten billion, five hundred twenty-five million, four hundred four thousand, four hundred forty-four".