6545255427 has 12 divisors (see below), whose sum is σ = 9780267120. Its totient is φ = 4213037808.

The previous prime is 6545255359. The next prime is 6545255441. The reversal of 6545255427 is 7245525456.

6545255427 is a `hidden beast` number, since 6 + 54 + 52 + 5 + 542 + 7 = 666.

It is not a de Polignac number, because 6545255427 - 2¹² = 6545251331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6545255477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12538543 + ... + 12539064.

It is an arithmetic number, because the mean of its divisors is an integer number (815022260).

Almost surely, 2^6545255427 is an apocalyptic number.

6545255427 is a deficient number, since it is larger than the sum of its proper divisors (3235011693).

6545255427 is a wasteful number, since it uses less digits than its factorization.

6545255427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25077642 (or 25077639 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 45.

The square root of 6545255427 is about 80902.7529012456. The cubic root of 6545255427 is about 1870.5767547127.

The spelling of 6545255427 in words is "six billion, five hundred forty-five million, two hundred fifty-five thousand, four hundred twenty-seven".