542007221 has 8 divisors (see below), whose sum is σ = 619924800. Its totient is φ = 464211648.

The previous prime is 542007211. The next prime is 542007223. The reversal of 542007221 is 122700245.

It is a happy number.

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 542007221 - 2⁶ = 542007157 is a prime.

It is a super-2 number, since 2×542007221² = 587543655232285682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542007223) 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, 20771 + ... + 38928.

It is an arithmetic number, because the mean of its divisors is an integer number (77490600).

Almost surely, 2^542007221 is an apocalyptic number.

It is an amenable number.

542007221 is a deficient number, since it is larger than the sum of its proper divisors (77917579).

542007221 is a wasteful number, since it uses less digits than its factorization.

542007221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61003.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 542007221 is about 23281.0485373834. The cubic root of 542007221 is about 815.3330070523. Note that the first 3 decimals are identical.

Adding to 542007221 its reverse (122700245), we get a palindrome (664707466).

The spelling of 542007221 in words is "five hundred forty-two million, seven thousand, two hundred twenty-one".