3200725530 has 112 divisors (see below), whose sum is σ = 8669151360. Its totient is φ = 850453344.

The previous prime is 3200725481. The next prime is 3200725531. The reversal of 3200725530 is 355270023.

It is a super-3 number, since 3×3200725530³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3200725494 and 3200725503.

It is not an unprimeable number, because it can be changed into a prime (3200725531) 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 55 ways as a sum of consecutive naturals, for example, 2616499 + ... + 2617721.

Almost surely, 2^3200725530 is an apocalyptic number.

3200725530 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 3200725530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4334575680).

3200725530 is an abundant number, since it is smaller than the sum of its proper divisors (5468425830).

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

3200725530 is a wasteful number, since it uses less digits than its factorization.

3200725530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 3200725530 is about 56574.9549712591. The cubic root of 3200725530 is about 1473.7239608475.

Adding to 3200725530 its reverse (355270023), we get a palindrome (3555995553).

The spelling of 3200725530 in words is "three billion, two hundred million, seven hundred twenty-five thousand, five hundred thirty".