256315375 has 16 divisors (see below), whose sum is σ = 338700960. Its totient is φ = 192988800.

The previous prime is 256315363. The next prime is 256315399. The reversal of 256315375 is 573513652.

It is not a de Polignac number, because 256315375 - 2⁵ = 256315343 is a prime.

It is a super-2 number, since 2×256315375² = 131395142922781250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58185 + ... + 62434.

It is an arithmetic number, because the mean of its divisors is an integer number (21168810).

Almost surely, 2^256315375 is an apocalyptic number.

256315375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256315375 is a deficient number, since it is larger than the sum of its proper divisors (82385585).

256315375 is a wasteful number, since it uses less digits than its factorization.

256315375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120651 (or 120641 counting only the distinct ones).

The product of its digits is 94500, while the sum is 37.

The square root of 256315375 is about 16009.8524352975. The cubic root of 256315375 is about 635.2210568122.

The spelling of 256315375 in words is "two hundred fifty-six million, three hundred fifteen thousand, three hundred seventy-five".