542451617 has 2 divisors, whose sum is σ = 542451618. Its totient is φ = 542451616.

The previous prime is 542451601. The next prime is 542451643. The reversal of 542451617 is 716154245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535644736 + 6806881 = 23144^2 + 2609^2 .

It is a cyclic number.

It is not a de Polignac number, because 542451617 - 2⁴ = 542451601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (542453617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271225808 + 271225809.

It is an arithmetic number, because the mean of its divisors is an integer number (271225809).

Almost surely, 2^542451617 is an apocalyptic number.

It is an amenable number.

542451617 is a deficient number, since it is larger than the sum of its proper divisors (1).

542451617 is an equidigital number, since it uses as much as digits as its factorization.

542451617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 542451617 is about 23290.5907396098. The cubic root of 542451617 is about 815.5557788360. Note that the first 3 decimals are identical.

The spelling of 542451617 in words is "five hundred forty-two million, four hundred fifty-one thousand, six hundred seventeen".