543525215245321 has 16 divisors (see below), whose sum is σ = 554173671744000. Its totient is φ = 532924908768000.

The previous prime is 543525215245307. The next prime is 543525215245367. The reversal of 543525215245321 is 123542512525345.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 543525215245321 - 2⁷ = 543525215245193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543525215245381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226667155 + ... + 229052503.

It is an arithmetic number, because the mean of its divisors is an integer number (34635854484000).

Almost surely, 2^{543525215245321} is an apocalyptic number.

It is an amenable number.

543525215245321 is a deficient number, since it is larger than the sum of its proper divisors (10648456498679).

543525215245321 is a wasteful number, since it uses less digits than its factorization.

543525215245321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395440.

The product of its digits is 7200000, while the sum is 49.

The spelling of 543525215245321 in words is "five hundred forty-three trillion, five hundred twenty-five billion, two hundred fifteen million, two hundred forty-five thousand, three hundred twenty-one".