523072256 has 180 divisors, whose sum is σ = 1305355632. Its totient is φ = 208631808.

The previous prime is 523072243. The next prime is 523072271. The reversal of 523072256 is 652270325.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14137070 + ... + 14137106.

Almost surely, 2^523072256 is an apocalyptic number.

523072256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523072256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652677816).

523072256 is an abundant number, since it is smaller than the sum of its proper divisors (782283376).

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

523072256 is an frugal number, since it uses more digits than its factorization.

523072256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 523072256 is about 22870.7729646376. The cubic root of 523072256 is about 805.7257223629.

The spelling of 523072256 in words is "five hundred twenty-three million, seventy-two thousand, two hundred fifty-six".