256150025 has 12 divisors (see below), whose sum is σ = 317824524. Its totient is φ = 204792000.

The previous prime is 256150021. The next prime is 256150051. The reversal of 256150025 is 520051652.

It can be written as a sum of positive squares in 6 ways, for example, as 16024009 + 240126016 = 4003^2 + 15496^2 .

It is not a de Polignac number, because 256150025 - 2² = 256150021 is a prime.

It is a super-2 number, since 2×256150025² = 131225670615001250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256149976 and 256150003.

It is not an unprimeable number, because it can be changed into a prime (256150021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77915 + ... + 81135.

It is an arithmetic number, because the mean of its divisors is an integer number (26485377).

Almost surely, 2^256150025 is an apocalyptic number.

256150025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256150025 is a deficient number, since it is larger than the sum of its proper divisors (61674499).

256150025 is a wasteful number, since it uses less digits than its factorization.

256150025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6407 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 256150025 is about 16004.6875945768. The cubic root of 256150025 is about 635.0844329417.

The spelling of 256150025 in words is "two hundred fifty-six million, one hundred fifty thousand, twenty-five".