1055204261 has 2 divisors, whose sum is σ = 1055204262. Its totient is φ = 1055204260.

The previous prime is 1055204243. The next prime is 1055204287. The reversal of 1055204261 is 1624025501.

It is an a-pointer prime, because the next prime (1055204287) can be obtained adding 1055204261 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929091361 + 126112900 = 30481^2 + 11230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055204261 is a prime.

It is a super-2 number, since 2×1055204261² = 2226912064865112242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055204261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055204231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527602130 + 527602131.

It is an arithmetic number, because the mean of its divisors is an integer number (527602131).

Almost surely, 2^1055204261 is an apocalyptic number.

It is an amenable number.

1055204261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055204261 is an equidigital number, since it uses as much as digits as its factorization.

1055204261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1055204261 is about 32483.9077236714. The cubic root of 1055204261 is about 1018.0728256165.

Adding to 1055204261 its reverse (1624025501), we get a palindrome (2679229762).

The spelling of 1055204261 in words is "one billion, fifty-five million, two hundred four thousand, two hundred sixty-one".