25020420334044 has 144 divisors (see below), whose sum is σ = 60246794391840. Its totient is φ = 8080291399680.

The previous prime is 25020420333983. The next prime is 25020420334097. The reversal of 25020420334044 is 44043302402052.

It is a junction number, because it is equal to n+sod(n) for n = 25020420333996 and 25020420334014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5674849312 + ... + 5674853720.

It is an arithmetic number, because the mean of its divisors is an integer number (418380516610).

Almost surely, 2^{25020420334044} is an apocalyptic number.

It is an amenable number.

25020420334044 is an abundant number, since it is smaller than the sum of its proper divisors (35226374057796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25020420334044 is a wasteful number, since it uses less digits than its factorization.

25020420334044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6468 (or 6407 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 25020420334044 its reverse (44043302402052), we get a palindrome (69063722736096).

The spelling of 25020420334044 in words is "twenty-five trillion, twenty billion, four hundred twenty million, three hundred thirty-four thousand, forty-four".