254599888995481 has 2 divisors, whose sum is σ = 254599888995482. Its totient is φ = 254599888995480.

The previous prime is 254599888995449. The next prime is 254599888995577. The reversal of 254599888995481 is 184599888995452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254153230689856 + 446658305625 = 15942184^2 + 668325^2 .

It is a cyclic number.

It is not a de Polignac number, because 254599888995481 - 2⁵ = 254599888995449 is a prime.

It is a super-2 number, since 2×254599888995481² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 254599888995481.

It is not a weakly prime, because it can be changed into another prime (254599888095481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127299944497740 + 127299944497741.

It is an arithmetic number, because the mean of its divisors is an integer number (127299944497741).

Almost surely, 2^{254599888995481} is an apocalyptic number.

It is an amenable number.

254599888995481 is a deficient number, since it is larger than the sum of its proper divisors (1).

254599888995481 is an equidigital number, since it uses as much as digits as its factorization.

254599888995481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107495424000, while the sum is 94.

The spelling of 254599888995481 in words is "two hundred fifty-four trillion, five hundred ninety-nine billion, eight hundred eighty-eight million, nine hundred ninety-five thousand, four hundred eighty-one".