25001072936 has 64 divisors (see below), whose sum is σ = 56477606400. Its totient is φ = 10135654848.

The previous prime is 25001072911. The next prime is 25001072959. The reversal of 25001072936 is 63927010052.

It is a junction number, because it is equal to n+sod(n) for n = 25001072896 and 25001072905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709511 + ... + 743913.

It is an arithmetic number, because the mean of its divisors is an integer number (882462600).

Almost surely, 2^25001072936 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 25001072936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28238803200).

25001072936 is an abundant number, since it is smaller than the sum of its proper divisors (31476533464).

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

25001072936 is a wasteful number, since it uses less digits than its factorization.

25001072936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35118 (or 35114 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

Adding to 25001072936 its reverse (63927010052), we get a palindrome (88928082988).

The spelling of 25001072936 in words is "twenty-five billion, one million, seventy-two thousand, nine hundred thirty-six".