542353053521 has 16 divisors (see below), whose sum is σ = 567633712128. Its totient is φ = 517597516800.

The previous prime is 542353053509. The next prime is 542353053547. The reversal of 542353053521 is 125350353245.

It is a cyclic number.

It is not a de Polignac number, because 542353053521 - 2⁶ = 542353053457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542353053551) 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, 524036 + ... + 1165898.

It is an arithmetic number, because the mean of its divisors is an integer number (35477107008).

Almost surely, 2^542353053521 is an apocalyptic number.

It is an amenable number.

542353053521 is a deficient number, since it is larger than the sum of its proper divisors (25280658607).

542353053521 is a wasteful number, since it uses less digits than its factorization.

542353053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642272.

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 542353053521 in words is "five hundred forty-two billion, three hundred fifty-three million, fifty-three thousand, five hundred twenty-one".