256026451 has 2 divisors, whose sum is σ = 256026452. Its totient is φ = 256026450.

The previous prime is 256026431. The next prime is 256026457. The reversal of 256026451 is 154620652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256026451 - 2¹⁷ = 255895379 is a prime.

It is a super-2 number, since 2×256026451² = 131099087223310802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (256026457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128013225 + 128013226.

It is an arithmetic number, because the mean of its divisors is an integer number (128013226).

Almost surely, 2^256026451 is an apocalyptic number.

256026451 is a deficient number, since it is larger than the sum of its proper divisors (1).

256026451 is an equidigital number, since it uses as much as digits as its factorization.

256026451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 256026451 is about 16000.8265723993. The cubic root of 256026451 is about 634.9822889639.

The spelling of 256026451 in words is "two hundred fifty-six million, twenty-six thousand, four hundred fifty-one".