254965535921 has 2 divisors, whose sum is σ = 254965535922. Its totient is φ = 254965535920.

The previous prime is 254965535897. The next prime is 254965535963. The reversal of 254965535921 is 129535569452.

254965535921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158097688225 + 96867847696 = 397615^2 + 311236^2 .

It is a cyclic number.

It is not a de Polignac number, because 254965535921 - 2¹⁴ = 254965519537 is a prime.

It is not a weakly prime, because it can be changed into another prime (254965535621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127482767960 + 127482767961.

It is an arithmetic number, because the mean of its divisors is an integer number (127482767961).

Almost surely, 2^254965535921 is an apocalyptic number.

It is an amenable number.

254965535921 is a deficient number, since it is larger than the sum of its proper divisors (1).

254965535921 is an equidigital number, since it uses as much as digits as its factorization.

254965535921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580000, while the sum is 56.

The spelling of 254965535921 in words is "two hundred fifty-four billion, nine hundred sixty-five million, five hundred thirty-five thousand, nine hundred twenty-one".