542425521 has 32 divisors (see below), whose sum is σ = 809994240. Its totient is φ = 320040000.

The previous prime is 542425489. The next prime is 542425549. The reversal of 542425521 is 125524245.

It is not a de Polignac number, because 542425521 - 2⁵ = 542425489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542425421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721896 + ... + 722646.

It is an arithmetic number, because the mean of its divisors is an integer number (25312320).

Almost surely, 2^542425521 is an apocalyptic number.

It is an amenable number.

542425521 is a deficient number, since it is larger than the sum of its proper divisors (267568719).

542425521 is a wasteful number, since it uses less digits than its factorization.

542425521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317.

The product of its digits is 16000, while the sum is 30.

The square root of 542425521 is about 23290.0305066352. The cubic root of 542425521 is about 815.5427005053.

Adding to 542425521 its reverse (125524245), we get a palindrome (667949766).

The spelling of 542425521 in words is "five hundred forty-two million, four hundred twenty-five thousand, five hundred twenty-one".