575278643 has 2 divisors, whose sum is σ = 575278644. Its totient is φ = 575278642.

The previous prime is 575278633. The next prime is 575278651. The reversal of 575278643 is 346872575.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 575278643 - 2⁸ = 575278387 is a prime.

It is not a weakly prime, because it can be changed into another prime (575278633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287639321 + 287639322.

It is an arithmetic number, because the mean of its divisors is an integer number (287639322).

Almost surely, 2^575278643 is an apocalyptic number.

575278643 is a deficient number, since it is larger than the sum of its proper divisors (1).

575278643 is an equidigital number, since it uses as much as digits as its factorization.

575278643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 47.

The square root of 575278643 is about 23984.9670210322. The cubic root of 575278643 is about 831.6860500906.

The spelling of 575278643 in words is "five hundred seventy-five million, two hundred seventy-eight thousand, six hundred forty-three".