542221533 has 40 divisors (see below), whose sum is σ = 938805120. Its totient is φ = 305454240.

The previous prime is 542221531. The next prime is 542221541. The reversal of 542221533 is 335122245.

It is a happy number.

It is not a de Polignac number, because 542221533 - 2¹ = 542221531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 542221497 and 542221506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542221531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33523 + ... + 46991.

It is an arithmetic number, because the mean of its divisors is an integer number (23470128).

Almost surely, 2^542221533 is an apocalyptic number.

It is an amenable number.

542221533 is a deficient number, since it is larger than the sum of its proper divisors (396583587).

542221533 is a wasteful number, since it uses less digits than its factorization.

542221533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559 (or 13550 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 542221533 is about 23285.6507961448. The cubic root of 542221533 is about 815.4404549579.

Adding to 542221533 its reverse (335122245), we get a palindrome (877343778).

It can be divided in two parts, 54222 and 1533, that added together give a palindrome (55755).

The spelling of 542221533 in words is "five hundred forty-two million, two hundred twenty-one thousand, five hundred thirty-three".