6542297855 has 16 divisors (see below), whose sum is σ = 7918124544. Its totient is φ = 5189003040.

The previous prime is 6542297851. The next prime is 6542297893. The reversal of 6542297855 is 5587922456.

It is a happy number.

It is not a de Polignac number, because 6542297855 - 2² = 6542297851 is a prime.

It is a super-2 number, since 2×6542297855² = 85603322447075202050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6542297797 and 6542297806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6542297851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796982 + ... + 805148.

It is an arithmetic number, because the mean of its divisors is an integer number (494882784).

Almost surely, 2^6542297855 is an apocalyptic number.

6542297855 is a deficient number, since it is larger than the sum of its proper divisors (1375826689).

6542297855 is a wasteful number, since it uses less digits than its factorization.

6542297855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9526.

The product of its digits is 6048000, while the sum is 53.

The square root of 6542297855 is about 80884.4722737313. The cubic root of 6542297855 is about 1870.2949628611.

The spelling of 6542297855 in words is "six billion, five hundred forty-two million, two hundred ninety-seven thousand, eight hundred fifty-five".