256241525 has 12 divisors (see below), whose sum is σ = 318116544. Its totient is φ = 204750000.

The previous prime is 256241497. The next prime is 256241549. The reversal of 256241525 is 525142652.

It is not a de Polignac number, because 256241525 - 2²² = 252047221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256241491 and 256241500.

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 11 ways as a sum of consecutive naturals, for example, 17150 + ... + 28400.

It is an arithmetic number, because the mean of its divisors is an integer number (26509712).

Almost surely, 2^256241525 is an apocalyptic number.

256241525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256241525 is a deficient number, since it is larger than the sum of its proper divisors (61875019).

256241525 is a wasteful number, since it uses less digits than its factorization.

256241525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12172 (or 12167 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 256241525 is about 16007.5458768669. The cubic root of 256241525 is about 635.1600439797.

The spelling of 256241525 in words is "two hundred fifty-six million, two hundred forty-one thousand, five hundred twenty-five".