256953547 has 2 divisors, whose sum is σ = 256953548. Its totient is φ = 256953546.

The previous prime is 256953517. The next prime is 256953577. The reversal of 256953547 is 745359652.

It is a balanced prime because it is at equal distance from previous prime (256953517) and next prime (256953577).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256953547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256953497 and 256953506.

It is not a weakly prime, because it can be changed into another prime (256953517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128476773 + 128476774.

It is an arithmetic number, because the mean of its divisors is an integer number (128476774).

Almost surely, 2^256953547 is an apocalyptic number.

256953547 is a deficient number, since it is larger than the sum of its proper divisors (1).

256953547 is an equidigital number, since it uses as much as digits as its factorization.

256953547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 46.

The square root of 256953547 is about 16029.7706471428. The cubic root of 256953547 is about 635.7478093455.

The spelling of 256953547 in words is "two hundred fifty-six million, nine hundred fifty-three thousand, five hundred forty-seven".