254660254997 has 2 divisors, whose sum is σ = 254660254998. Its totient is φ = 254660254996.

The previous prime is 254660254957. The next prime is 254660254999. The reversal of 254660254997 is 799452066452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222148198276 + 32512056721 = 471326^2 + 180311^2 .

It is a cyclic number.

It is not a de Polignac number, because 254660254997 - 2²² = 254656060693 is a prime.

It is a super-3 number, since 3×254660254997³ (a number of 35 digits) contains 333 as substring.

Together with 254660254999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254660254999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127330127498 + 127330127499.

It is an arithmetic number, because the mean of its divisors is an integer number (127330127499).

Almost surely, 2^254660254997 is an apocalyptic number.

It is an amenable number.

254660254997 is a deficient number, since it is larger than the sum of its proper divisors (1).

254660254997 is an equidigital number, since it uses as much as digits as its factorization.

254660254997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 59.

The spelling of 254660254997 in words is "two hundred fifty-four billion, six hundred sixty million, two hundred fifty-four thousand, nine hundred ninety-seven".