256151875 has 20 divisors (see below), whose sum is σ = 365820400. Its totient is φ = 175644000.

The previous prime is 256151837. The next prime is 256151899. The reversal of 256151875 is 578151652.

It is a happy number.

It is not a de Polignac number, because 256151875 - 2⁷ = 256151747 is a prime.

It is a super-2 number, since 2×256151875² = 131227566132031250, which contains 22 as substring.

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, 24900 + ... + 33649.

It is an arithmetic number, because the mean of its divisors is an integer number (18291020).

Almost surely, 2^256151875 is an apocalyptic number.

256151875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256151875 is a deficient number, since it is larger than the sum of its proper divisors (109668525).

256151875 is an frugal number, since it uses more digits than its factorization.

256151875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58576 (or 58561 counting only the distinct ones).

The product of its digits is 84000, while the sum is 40.

The square root of 256151875 is about 16004.7453900398. The cubic root of 256151875 is about 635.0859618678.

The spelling of 256151875 in words is "two hundred fifty-six million, one hundred fifty-one thousand, eight hundred seventy-five".