256151375 has 16 divisors (see below), whose sum is σ = 320747232. Its totient is φ = 204235200.

The previous prime is 256151351. The next prime is 256151377. The reversal of 256151375 is 573151652.

It is not a de Polignac number, because 256151375 - 2¹⁶ = 256085839 is a prime.

It is a super-2 number, since 2×256151375² = 131227053828781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256151377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35852 + ... + 42398.

It is an arithmetic number, because the mean of its divisors is an integer number (20046702).

Almost surely, 2^256151375 is an apocalyptic number.

256151375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256151375 is a deficient number, since it is larger than the sum of its proper divisors (64595857).

256151375 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 11 representation: 256151375 = (121655357)₁₁.

256151375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875 (or 6865 counting only the distinct ones).

The product of its digits is 31500, while the sum is 35.

The square root of 256151375 is about 16004.7297696650. The cubic root of 256151375 is about 635.0855486453.

The spelling of 256151375 in words is "two hundred fifty-six million, one hundred fifty-one thousand, three hundred seventy-five".