256488527 has 2 divisors, whose sum is σ = 256488528. Its totient is φ = 256488526.

The previous prime is 256488521. The next prime is 256488559. The reversal of 256488527 is 725884652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256488527 - 2²² = 252294223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256488521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128244263 + 128244264.

It is an arithmetic number, because the mean of its divisors is an integer number (128244264).

Almost surely, 2^256488527 is an apocalyptic number.

256488527 is a deficient number, since it is larger than the sum of its proper divisors (1).

256488527 is an equidigital number, since it uses as much as digits as its factorization.

256488527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1075200, while the sum is 47.

The square root of 256488527 is about 16015.2591924077. The cubic root of 256488527 is about 635.3640642798.

The spelling of 256488527 in words is "two hundred fifty-six million, four hundred eighty-eight thousand, five hundred twenty-seven".