256074653 has 2 divisors, whose sum is σ = 256074654. Its totient is φ = 256074652.

The previous prime is 256074649. The next prime is 256074673. The reversal of 256074653 is 356470652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243422404 + 12652249 = 15602^2 + 3557^2 .

It is a cyclic number.

It is not a de Polignac number, because 256074653 - 2² = 256074649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256074613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128037326 + 128037327.

It is an arithmetic number, because the mean of its divisors is an integer number (128037327).

Almost surely, 2^256074653 is an apocalyptic number.

It is an amenable number.

256074653 is a deficient number, since it is larger than the sum of its proper divisors (1).

256074653 is an equidigital number, since it uses as much as digits as its factorization.

256074653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 256074653 is about 16002.3327361982. The cubic root of 256074653 is about 635.0221357526.

The spelling of 256074653 in words is "two hundred fifty-six million, seventy-four thousand, six hundred fifty-three".