256342275 has 54 divisors (see below), whose sum is σ = 534121692. Its totient is φ = 117180000.

The previous prime is 256342267. The next prime is 256342297. The reversal of 256342275 is 572243652.

256342275 is a `hidden beast` number, since 2 + 563 + 4 + 22 + 75 = 666.

It is not a de Polignac number, because 256342275 - 2³ = 256342267 is a prime.

It is a super-2 number, since 2×256342275² = 131422723904351250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 601 + ... + 22650.

Almost surely, 2^256342275 is an apocalyptic number.

256342275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256342275 is an abundant number, since it is smaller than the sum of its proper divisors (277779417).

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

256342275 is a wasteful number, since it uses less digits than its factorization.

256342275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23281 (or 23266 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 256342275 is about 16010.6925209374. The cubic root of 256342275 is about 635.2432779381.

The spelling of 256342275 in words is "two hundred fifty-six million, three hundred forty-two thousand, two hundred seventy-five".