255474553 has 2 divisors, whose sum is σ = 255474554. Its totient is φ = 255474552.

The previous prime is 255474511. The next prime is 255474559. The reversal of 255474553 is 355474552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220581904 + 34892649 = 14852^2 + 5907^2 .

It is a cyclic number.

It is not a de Polignac number, because 255474553 - 2¹⁷ = 255343481 is a prime.

It is not a weakly prime, because it can be changed into another prime (255474559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127737276 + 127737277.

It is an arithmetic number, because the mean of its divisors is an integer number (127737277).

Almost surely, 2^255474553 is an apocalyptic number.

It is an amenable number.

255474553 is a deficient number, since it is larger than the sum of its proper divisors (1).

255474553 is an equidigital number, since it uses as much as digits as its factorization.

255474553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 40.

The square root of 255474553 is about 15983.5713468549. The cubic root of 255474553 is about 634.5256986832.

Subtracting 255474553 from its reverse (355474552), we obtain a palindrome (99999999).

The spelling of 255474553 in words is "two hundred fifty-five million, four hundred seventy-four thousand, five hundred fifty-three".