256000000653 has 12 divisors (see below), whose sum is σ = 385855073760. Its totient is φ = 163246377096.

The previous prime is 256000000559. The next prime is 256000000667. The reversal of 256000000653 is 356000000652.

256000000653 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 0 + 0 + 0 + 0 + 0 + 653 = 666.

It is not a de Polignac number, because 256000000653 - 2¹⁴ = 255999984269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256000000853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618357283 + ... + 618357696.

It is an arithmetic number, because the mean of its divisors is an integer number (32154589480).

Almost surely, 2^256000000653 is an apocalyptic number.

256000000653 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

256000000653 is a deficient number, since it is larger than the sum of its proper divisors (129855073107).

256000000653 is a wasteful number, since it uses less digits than its factorization.

256000000653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236715008 (or 1236715005 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Subtracting 256000000653 from its reverse (356000000652), we obtain a palindrome (99999999999).

The spelling of 256000000653 in words is "two hundred fifty-six billion, six hundred fifty-three", and thus it is an aban number.