25043044012 has 96 divisors (see below), whose sum is σ = 55931904000. Its totient is φ = 9551167488.

The previous prime is 25043043983. The next prime is 25043044027. The reversal of 25043044012 is 21044034052.

It is a happy number.

It is a super-2 number, since 2×25043044012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5215989 + ... + 5220787.

It is an arithmetic number, because the mean of its divisors is an integer number (582624000).

Almost surely, 2^25043044012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25043044012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27965952000).

25043044012 is an abundant number, since it is smaller than the sum of its proper divisors (30888859988).

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

25043044012 is a wasteful number, since it uses less digits than its factorization.

25043044012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 25043044012 its reverse (21044034052), we get a palindrome (46087078064).

The spelling of 25043044012 in words is "twenty-five billion, forty-three million, forty-four thousand, twelve".