3256520343 has 16 divisors (see below), whose sum is σ = 4532167680. Its totient is φ = 2075999904.

The previous prime is 3256520339. The next prime is 3256520353. The reversal of 3256520343 is 3430256523.

It is not a de Polignac number, because 3256520343 - 2² = 3256520339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256520353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369138 + ... + 377856.

It is an arithmetic number, because the mean of its divisors is an integer number (283260480).

Almost surely, 2^3256520343 is an apocalyptic number.

3256520343 is a deficient number, since it is larger than the sum of its proper divisors (1275647337).

3256520343 is a wasteful number, since it uses less digits than its factorization.

3256520343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14158.

The product of its (nonzero) digits is 64800, while the sum is 33.

The square root of 3256520343 is about 57065.9297917768. The cubic root of 3256520343 is about 1482.2379617379.

Adding to 3256520343 its reverse (3430256523), we get a palindrome (6686776866).

The spelling of 3256520343 in words is "three billion, two hundred fifty-six million, five hundred twenty thousand, three hundred forty-three".