254245222542457 has 2 divisors, whose sum is σ = 254245222542458. Its totient is φ = 254245222542456.

The previous prime is 254245222542431. The next prime is 254245222542461. The reversal of 254245222542457 is 754245222542452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227825787022201 + 26419435520256 = 15093899^2 + 5139984^2 .

It is a cyclic number.

It is not a de Polignac number, because 254245222542457 - 2¹⁹ = 254245222018169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254245222542398 and 254245222542407.

It is not a weakly prime, because it can be changed into another prime (254245222542257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127122611271228 + 127122611271229.

It is an arithmetic number, because the mean of its divisors is an integer number (127122611271229).

Almost surely, 2^{254245222542457} is an apocalyptic number.

It is an amenable number.

254245222542457 is a deficient number, since it is larger than the sum of its proper divisors (1).

254245222542457 is an equidigital number, since it uses as much as digits as its factorization.

254245222542457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680000, while the sum is 55.

The spelling of 254245222542457 in words is "two hundred fifty-four trillion, two hundred forty-five billion, two hundred twenty-two million, five hundred forty-two thousand, four hundred fifty-seven".