25005030006 has 128 divisors (see below), whose sum is σ = 59923100160. Its totient is φ = 6866585600.

The previous prime is 25005029981. The next prime is 25005030019. The reversal of 25005030006 is 60003050052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14999185 + ... + 15000851.

It is an arithmetic number, because the mean of its divisors is an integer number (468149220).

Almost surely, 2^25005030006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25005030006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29961550080).

25005030006 is an abundant number, since it is smaller than the sum of its proper divisors (34918070154).

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

25005030006 is a wasteful number, since it uses less digits than its factorization.

25005030006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 900, while the sum is 21.

Adding to 25005030006 its reverse (60003050052), we get a palindrome (85008080058).

The spelling of 25005030006 in words is "twenty-five billion, five million, thirty thousand, six".