3211125450 has 96 divisors (see below), whose sum is σ = 8949177216. Its totient is φ = 756053760.

The previous prime is 3211125433. The next prime is 3211125499. The reversal of 3211125450 is 545211123.

It is a happy number.

It is a super-2 number, since 2×3211125450² = 20622653311275405000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3211125450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9052 + ... + 80648.

It is an arithmetic number, because the mean of its divisors is an integer number (93220596).

Almost surely, 2^3211125450 is an apocalyptic number.

3211125450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3211125450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4474588608).

3211125450 is an abundant number, since it is smaller than the sum of its proper divisors (5738051766).

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

3211125450 is a wasteful number, since it uses less digits than its factorization.

3211125450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71648 (or 71643 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 3211125450 is about 56666.7931861333. The cubic root of 3211125450 is about 1475.3183953088.

Adding to 3211125450 its reverse (545211123), we get a palindrome (3756336573).

The spelling of 3211125450 in words is "three billion, two hundred eleven million, one hundred twenty-five thousand, four hundred fifty".