256530115607 has 2 divisors, whose sum is σ = 256530115608. Its totient is φ = 256530115606.

The previous prime is 256530115559. The next prime is 256530115631. The reversal of 256530115607 is 706511035652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256530115607 - 2³² = 252235148311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256530115507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128265057803 + 128265057804.

It is an arithmetic number, because the mean of its divisors is an integer number (128265057804).

Almost surely, 2^256530115607 is an apocalyptic number.

256530115607 is a deficient number, since it is larger than the sum of its proper divisors (1).

256530115607 is an equidigital number, since it uses as much as digits as its factorization.

256530115607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 256530115607 in words is "two hundred fifty-six billion, five hundred thirty million, one hundred fifteen thousand, six hundred seven".