254521541 has 2 divisors, whose sum is σ = 254521542. Its totient is φ = 254521540.

The previous prime is 254521513. The next prime is 254521571. The reversal of 254521541 is 145125452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252969025 + 1552516 = 15905^2 + 1246^2 .

It is a cyclic number.

It is not a de Polignac number, because 254521541 - 2¹⁰ = 254520517 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254521571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127260770 + 127260771.

It is an arithmetic number, because the mean of its divisors is an integer number (127260771).

Almost surely, 2^254521541 is an apocalyptic number.

It is an amenable number.

254521541 is a deficient number, since it is larger than the sum of its proper divisors (1).

254521541 is an equidigital number, since it uses as much as digits as its factorization.

254521541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8000, while the sum is 29.

The square root of 254521541 is about 15953.7312563550. The cubic root of 254521541 is about 633.7357125057.

Adding to 254521541 its reverse (145125452), we get a palindrome (399646993).

The spelling of 254521541 in words is "two hundred fifty-four million, five hundred twenty-one thousand, five hundred forty-one".