2542066217 has 6 divisors (see below), whose sum is σ = 2602560762. Its totient is φ = 2482946592.

The previous prime is 2542066207. The next prime is 2542066231. The reversal of 2542066217 is 7126602452.

It can be written as a sum of positive squares in only one way, i.e., 2522450176 + 19616041 = 50224^2 + 4429^2 .

It is not a de Polignac number, because 2542066217 - 2⁴ = 2542066201 is a prime.

It is a super-2 number, since 2×2542066217² = 12924201303225382178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542066207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 685568 + ... + 689265.

It is an arithmetic number, because the mean of its divisors is an integer number (433760127).

Almost surely, 2^2542066217 is an apocalyptic number.

It is an amenable number.

2542066217 is a deficient number, since it is larger than the sum of its proper divisors (60494545).

2542066217 is an equidigital number, since it uses as much as digits as its factorization.

2542066217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374919 (or 1374876 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2542066217 is about 50418.9073364348. The cubic root of 2542066217 is about 1364.7788586548.

Adding to 2542066217 its reverse (7126602452), we get a palindrome (9668668669).

The spelling of 2542066217 in words is "two billion, five hundred forty-two million, sixty-six thousand, two hundred seventeen".