3215506000 has 240 divisors, whose sum is σ = 9220124160. Its totient is φ = 1062432000.

The previous prime is 3215505967. The next prime is 3215506003. The reversal of 3215506000 is 6055123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215506003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13453881 + ... + 13454119.

It is an arithmetic number, because the mean of its divisors is an integer number (38417184).

Almost surely, 2^3215506000 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 3215506000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4610062080).

3215506000 is an abundant number, since it is smaller than the sum of its proper divisors (6004618160).

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

3215506000 is a wasteful number, since it uses less digits than its factorization.

3215506000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 3215506000 is about 56705.4318385814. The cubic root of 3215506000 is about 1475.9889566181.

The spelling of 3215506000 in words is "three billion, two hundred fifteen million, five hundred six thousand".