2500005312 has 168 divisors, whose sum is σ = 8671474656. Its totient is φ = 672251904.

The previous prime is 2500005281. The next prime is 2500005383. The reversal of 2500005312 is 2135000052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50308 + ... + 86780.

Almost surely, 2^2500005312 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 2500005312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4335737328).

2500005312 is an abundant number, since it is smaller than the sum of its proper divisors (6171469344).

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

2500005312 is a wasteful number, since it uses less digits than its factorization.

2500005312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36515 (or 36502 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2500005312 is about 50000.0531199718. The cubic root of 2500005312 is about 1357.2097695625.

Adding to 2500005312 its reverse (2135000052), we get a palindrome (4635005364).

The spelling of 2500005312 in words is "two billion, five hundred million, five thousand, three hundred twelve".