1055003321 has 2 divisors, whose sum is σ = 1055003322. Its totient is φ = 1055003320.

The previous prime is 1055003309. The next prime is 1055003333. The reversal of 1055003321 is 1233005501.

It is a balanced prime because it is at equal distance from previous prime (1055003309) and next prime (1055003333).

It can be written as a sum of positive squares in only one way, i.e., 1053911296 + 1092025 = 32464^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055003321 - 2¹⁰ = 1055002297 is a prime.

It is a super-2 number, since 2×1055003321² = 2226064014642058082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1055003293 and 1055003302.

It is not a weakly prime, because it can be changed into another prime (1055003371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527501660 + 527501661.

It is an arithmetic number, because the mean of its divisors is an integer number (527501661).

Almost surely, 2^1055003321 is an apocalyptic number.

It is an amenable number.

1055003321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055003321 is an equidigital number, since it uses as much as digits as its factorization.

1055003321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1055003321 is about 32480.8146603499. The cubic root of 1055003321 is about 1018.0081984639.

Adding to 1055003321 its reverse (1233005501), we get a palindrome (2288008822).

The spelling of 1055003321 in words is "one billion, fifty-five million, three thousand, three hundred twenty-one".