804030553 has 2 divisors, whose sum is σ = 804030554. Its totient is φ = 804030552.

The previous prime is 804030547. The next prime is 804030587. The reversal of 804030553 is 355030408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474716944 + 329313609 = 21788^2 + 18147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804030553 is a prime.

It is a super-3 number, since 3×804030553³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (804030503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402015276 + 402015277.

It is an arithmetic number, because the mean of its divisors is an integer number (402015277).

Almost surely, 2^804030553 is an apocalyptic number.

It is an amenable number.

804030553 is a deficient number, since it is larger than the sum of its proper divisors (1).

804030553 is an equidigital number, since it uses as much as digits as its factorization.

804030553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 804030553 is about 28355.4325130124. The cubic root of 804030553 is about 929.8741699724.

The spelling of 804030553 in words is "eight hundred four million, thirty thousand, five hundred fifty-three".