256052485 has 8 divisors (see below), whose sum is σ = 330898680. Its totient is φ = 189084864.

The previous prime is 256052479. The next prime is 256052497. The reversal of 256052485 is 584250652.

It can be written as a sum of positive squares in 4 ways, for example, as 20061441 + 235991044 = 4479^2 + 15362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256052485 - 2²³ = 247663877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1969570 + ... + 1969699.

It is an arithmetic number, because the mean of its divisors is an integer number (41362335).

Almost surely, 2^256052485 is an apocalyptic number.

It is an amenable number.

256052485 is a deficient number, since it is larger than the sum of its proper divisors (74846195).

256052485 is a wasteful number, since it uses less digits than its factorization.

256052485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939287.

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 256052485 is about 16001.6400721926. The cubic root of 256052485 is about 635.0038109181.

The spelling of 256052485 in words is "two hundred fifty-six million, fifty-two thousand, four hundred eighty-five".