543775901 has 2 divisors, whose sum is σ = 543775902. Its totient is φ = 543775900.

The previous prime is 543775861. The next prime is 543775909. The reversal of 543775901 is 109577345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530196676 + 13579225 = 23026^2 + 3685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543775901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543775909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271887950 + 271887951.

It is an arithmetic number, because the mean of its divisors is an integer number (271887951).

Almost surely, 2^543775901 is an apocalyptic number.

It is an amenable number.

543775901 is a deficient number, since it is larger than the sum of its proper divisors (1).

543775901 is an equidigital number, since it uses as much as digits as its factorization.

543775901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 543775901 is about 23319.0030018438. The cubic root of 543775901 is about 816.2189100333.

The spelling of 543775901 in words is "five hundred forty-three million, seven hundred seventy-five thousand, nine hundred one".