3256505361 has 24 divisors (see below), whose sum is σ = 4963863840. Its totient is φ = 2051568000.

The previous prime is 3256505359. The next prime is 3256505377. The reversal of 3256505361 is 1635056523.

3256505361 is a `hidden beast` number, since 32 + 565 + 0 + 5 + 3 + 61 = 666.

It is not a de Polignac number, because 3256505361 - 2¹ = 3256505359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3256505561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44826 + ... + 92316.

It is an arithmetic number, because the mean of its divisors is an integer number (206827660).

Almost surely, 2^3256505361 is an apocalyptic number.

It is an amenable number.

3256505361 is a deficient number, since it is larger than the sum of its proper divisors (1707358479).

3256505361 is a wasteful number, since it uses less digits than its factorization.

3256505361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47917 (or 47914 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 3256505361 is about 57065.7985224074. The cubic root of 3256505361 is about 1482.2356886652.

The spelling of 3256505361 in words is "three billion, two hundred fifty-six million, five hundred five thousand, three hundred sixty-one".