3212500000 has 108 divisors (see below), whose sum is σ = 7936519374. Its totient is φ = 1280000000.

The previous prime is 3212499989. The next prime is 3212500033. The reversal of 3212500000 is 52123.

It can be written as a sum of positive squares in 9 ways, for example, as 3135552016 + 76947984 = 55996^2 + 8772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12499872 + ... + 12500128.

Almost surely, 2^3212500000 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 3212500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3968259687).

3212500000 is an abundant number, since it is smaller than the sum of its proper divisors (4724019374).

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

3212500000 is an frugal number, since it uses more digits than its factorization.

3212500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 3212500000 is about 56678.9202437732. The cubic root of 3212500000 is about 1475.5288728757.

Adding to 3212500000 its reverse (52123), we get a palindrome (3212552123).

It can be divided in two parts, 32 and 12500000, that multiplied together give a square (400000000 = 20000²).

The spelling of 3212500000 in words is "three billion, two hundred twelve million, five hundred thousand".