542241102521 has 8 divisors (see below), whose sum is σ = 559207049544. Its totient is φ = 525396775680.

The previous prime is 542241102457. The next prime is 542241102527. The reversal of 542241102521 is 125201142245.

It can be written as a sum of positive squares in 4 ways, for example, as 209456336896 + 332784765625 = 457664^2 + 576875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542241102521 - 2⁶ = 542241102457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542241102527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30395990 + ... + 30413823.

It is an arithmetic number, because the mean of its divisors is an integer number (69900881193).

Almost surely, 2^542241102521 is an apocalyptic number.

It is an amenable number.

542241102521 is a deficient number, since it is larger than the sum of its proper divisors (16965947023).

542241102521 is a wasteful number, since it uses less digits than its factorization.

542241102521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60810091.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 542241102521 its reverse (125201142245), we get a palindrome (667442244766).

The spelling of 542241102521 in words is "five hundred forty-two billion, two hundred forty-one million, one hundred two thousand, five hundred twenty-one".