255554513 has 2 divisors, whose sum is σ = 255554514. Its totient is φ = 255554512.

The previous prime is 255554491. The next prime is 255554527. The reversal of 255554513 is 315455552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178676689 + 76877824 = 13367^2 + 8768^2 .

It is a cyclic number.

It is not a de Polignac number, because 255554513 - 2¹⁰ = 255553489 is a prime.

It is a super-2 number, since 2×255554513² = 130616218229334338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255554213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127777256 + 127777257.

It is an arithmetic number, because the mean of its divisors is an integer number (127777257).

Almost surely, 2^255554513 is an apocalyptic number.

It is an amenable number.

255554513 is a deficient number, since it is larger than the sum of its proper divisors (1).

255554513 is an equidigital number, since it uses as much as digits as its factorization.

255554513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75000, while the sum is 35.

The square root of 255554513 is about 15986.0724694967. The cubic root of 255554513 is about 634.5918910324.

The spelling of 255554513 in words is "two hundred fifty-five million, five hundred fifty-four thousand, five hundred thirteen".