542252442540 has 48 divisors (see below), whose sum is σ = 1559342165472. Its totient is φ = 140692525056.

The previous prime is 542252442539. The next prime is 542252442601. The reversal of 542252442540 is 45244252245.

It is a super-2 number, since 2×542252442540² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122126709 + ... + 122131148.

It is an arithmetic number, because the mean of its divisors is an integer number (32486295114).

Almost surely, 2^542252442540 is an apocalyptic number.

It is an amenable number.

542252442540 is an abundant number, since it is smaller than the sum of its proper divisors (1017089722932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542252442540 is a wasteful number, since it uses less digits than its factorization.

542252442540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244257906 (or 244257904 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 39.

Adding to 542252442540 its reverse (45244252245), we get a palindrome (587496694785).

The spelling of 542252442540 in words is "five hundred forty-two billion, two hundred fifty-two million, four hundred forty-two thousand, five hundred forty".