1055840449 has 2 divisors, whose sum is σ = 1055840450. Its totient is φ = 1055840448.

The previous prime is 1055840419. The next prime is 1055840483. The reversal of 1055840449 is 9440485501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829036849 + 226803600 = 28793^2 + 15060^2 .

It is an emirp because it is prime and its reverse (9440485501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055840449 - 2⁵ = 1055840417 is a prime.

It is a super-2 number, since 2×1055840449² = 2229598107489043202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055840419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527920224 + 527920225.

It is an arithmetic number, because the mean of its divisors is an integer number (527920225).

Almost surely, 2^1055840449 is an apocalyptic number.

It is an amenable number.

1055840449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055840449 is an equidigital number, since it uses as much as digits as its factorization.

1055840449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1055840449 is about 32493.6986044987. The cubic root of 1055840449 is about 1018.2773849351.

The spelling of 1055840449 in words is "one billion, fifty-five million, eight hundred forty thousand, four hundred forty-nine".