1053555443 has 2 divisors, whose sum is σ = 1053555444. Its totient is φ = 1053555442.

The previous prime is 1053555421. The next prime is 1053555449. The reversal of 1053555443 is 3445553501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1053555443 - 2¹⁰ = 1053554419 is a prime.

It is a super-2 number, since 2×1053555443² = 2219958142949852498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1053555449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526777721 + 526777722.

It is an arithmetic number, because the mean of its divisors is an integer number (526777722).

Almost surely, 2^1053555443 is an apocalyptic number.

1053555443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053555443 is an equidigital number, since it uses as much as digits as its factorization.

1053555443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 1053555443 is about 32458.5188047760. The cubic root of 1053555443 is about 1017.5422831948.

The spelling of 1053555443 in words is "one billion, fifty-three million, five hundred fifty-five thousand, four hundred forty-three".