256552192 has 72 divisors (see below), whose sum is σ = 556752896. Its totient is φ = 117282816.

The previous prime is 256552169. The next prime is 256552207. The reversal of 256552192 is 291255652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422353 + ... + 422959.

Almost surely, 2^256552192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256552192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278376448).

256552192 is an abundant number, since it is smaller than the sum of its proper divisors (300200704).

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

256552192 is a wasteful number, since it uses less digits than its factorization.

256552192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 749 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The square root of 256552192 is about 16017.2467047243. The cubic root of 256552192 is about 635.4166294728.

The spelling of 256552192 in words is "two hundred fifty-six million, five hundred fifty-two thousand, one hundred ninety-two".