256652305 has 32 divisors (see below), whose sum is σ = 384297984. Its totient is φ = 160206336.

The previous prime is 256652293. The next prime is 256652321. The reversal of 256652305 is 503256652.

It is a cyclic number.

It is not a de Polignac number, because 256652305 - 2⁷ = 256652177 is a prime.

It is a super-3 number, since 3×256652305³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29352 + ... + 37078.

It is an arithmetic number, because the mean of its divisors is an integer number (12009312).

Almost surely, 2^256652305 is an apocalyptic number.

It is an amenable number.

256652305 is a deficient number, since it is larger than the sum of its proper divisors (127645679).

256652305 is a wasteful number, since it uses less digits than its factorization.

256652305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 256652305 is about 16020.3715624826. The cubic root of 256652305 is about 635.4992704770.

The spelling of 256652305 in words is "two hundred fifty-six million, six hundred fifty-two thousand, three hundred five".