256523326 has 8 divisors (see below), whose sum is σ = 397197504. Its totient is φ = 124124160.

The previous prime is 256523297. The next prime is 256523341. The reversal of 256523326 is 623325652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 256523291 and 256523300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068675 + ... + 2068798.

It is an arithmetic number, because the mean of its divisors is an integer number (49649688).

Almost surely, 2^256523326 is an apocalyptic number.

256523326 is a deficient number, since it is larger than the sum of its proper divisors (140674178).

256523326 is a wasteful number, since it uses less digits than its factorization.

256523326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137506.

The product of its digits is 64800, while the sum is 34.

The square root of 256523326 is about 16016.3455881796. The cubic root of 256523326 is about 635.3927972534.

Adding to 256523326 its reverse (623325652), we get a palindrome (879848978).

The spelling of 256523326 in words is "two hundred fifty-six million, five hundred twenty-three thousand, three hundred twenty-six".