542210521 has 8 divisors (see below), whose sum is σ = 560317824. Its totient is φ = 524353200.

The previous prime is 542210519. The next prime is 542210549. The reversal of 542210521 is 125012245.

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 542210521 - 2¹ = 542210519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542210492 and 542210501.

It is not an unprimeable number, because it can be changed into a prime (542210561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58081 + ... + 66766.

It is an arithmetic number, because the mean of its divisors is an integer number (70039728).

Almost surely, 2^542210521 is an apocalyptic number.

It is an amenable number.

542210521 is a deficient number, since it is larger than the sum of its proper divisors (18107303).

542210521 is a wasteful number, since it uses less digits than its factorization.

542210521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124991.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 542210521 is about 23285.4143403118. The cubic root of 542210521 is about 815.4349346490.

Adding to 542210521 its reverse (125012245), we get a palindrome (667222766).

The spelling of 542210521 in words is "five hundred forty-two million, two hundred ten thousand, five hundred twenty-one".