256522325 has 24 divisors (see below), whose sum is σ = 338207520. Its totient is φ = 192456000.

The previous prime is 256522307. The next prime is 256522327. The reversal of 256522325 is 523225652.

256522325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256522325 - 2⁶ = 256522261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256522291 and 256522300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256522327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45302 + ... + 50648.

It is an arithmetic number, because the mean of its divisors is an integer number (14091980).

Almost surely, 2^256522325 is an apocalyptic number.

256522325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256522325 is a deficient number, since it is larger than the sum of its proper divisors (81685195).

256522325 is a wasteful number, since it uses less digits than its factorization.

256522325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477 (or 5472 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 256522325 is about 16016.3143388234. The cubic root of 256522325 is about 635.3919707802.

Adding to 256522325 its reverse (523225652), we get a palindrome (779747977).

The spelling of 256522325 in words is "two hundred fifty-six million, five hundred twenty-two thousand, three hundred twenty-five".