542531553 has 4 divisors (see below), whose sum is σ = 723375408. Its totient is φ = 361687700.

The previous prime is 542531551. The next prime is 542531569. The reversal of 542531553 is 355135245.

It is a happy number.

542531553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542531553 - 2¹ = 542531551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542531551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90421923 + ... + 90421928.

It is an arithmetic number, because the mean of its divisors is an integer number (180843852).

Almost surely, 2^542531553 is an apocalyptic number.

It is an amenable number.

542531553 is a deficient number, since it is larger than the sum of its proper divisors (180843855).

542531553 is a wasteful number, since it uses less digits than its factorization.

542531553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180843854.

The product of its digits is 45000, while the sum is 33.

The square root of 542531553 is about 23292.3067341987. The cubic root of 542531553 is about 815.5958371335.

Adding to 542531553 its reverse (355135245), we get a palindrome (897666798).

The spelling of 542531553 in words is "five hundred forty-two million, five hundred thirty-one thousand, five hundred fifty-three".