254982280261 has 2 divisors, whose sum is σ = 254982280262. Its totient is φ = 254982280260.

The previous prime is 254982280193. The next prime is 254982280291. The reversal of 254982280261 is 162082289452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181310749636 + 73671530625 = 425806^2 + 271425^2 .

It is a cyclic number.

It is not a de Polignac number, because 254982280261 - 2²¹ = 254980183109 is a prime.

It is a super-3 number, since 3×254982280261³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254982280291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127491140130 + 127491140131.

It is an arithmetic number, because the mean of its divisors is an integer number (127491140131).

Almost surely, 2^254982280261 is an apocalyptic number.

It is an amenable number.

254982280261 is a deficient number, since it is larger than the sum of its proper divisors (1).

254982280261 is an equidigital number, since it uses as much as digits as its factorization.

254982280261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 254982280261 in words is "two hundred fifty-four billion, nine hundred eighty-two million, two hundred eighty thousand, two hundred sixty-one".