542445577 has 2 divisors, whose sum is σ = 542445578. Its totient is φ = 542445576.

The previous prime is 542445557. The next prime is 542445599. The reversal of 542445577 is 775544245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511709641 + 30735936 = 22621^2 + 5544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542445577 is a prime.

It is not a weakly prime, because it can be changed into another prime (542445557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271222788 + 271222789.

It is an arithmetic number, because the mean of its divisors is an integer number (271222789).

Almost surely, 2^542445577 is an apocalyptic number.

It is an amenable number.

542445577 is a deficient number, since it is larger than the sum of its proper divisors (1).

542445577 is an equidigital number, since it uses as much as digits as its factorization.

542445577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 784000, while the sum is 43.

The square root of 542445577 is about 23290.4610731518. The cubic root of 542445577 is about 815.5527518532.

The spelling of 542445577 in words is "five hundred forty-two million, four hundred forty-five thousand, five hundred seventy-seven".