542512520 has 32 divisors (see below), whose sum is σ = 1331622720. Its totient is φ = 197277120.

The previous prime is 542512507. The next prime is 542512549. The reversal of 542512520 is 25215245.

It is a self number, because there is not a number n which added to its sum of digits gives 542512520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616052 + ... + 616931.

It is an arithmetic number, because the mean of its divisors is an integer number (41613210).

Almost surely, 2^542512520 is an apocalyptic number.

It is an amenable number.

542512520 is an abundant number, since it is smaller than the sum of its proper divisors (789110200).

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

542512520 is a wasteful number, since it uses less digits than its factorization.

542512520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233005 (or 1233001 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 542512520 is about 23291.8981622366. The cubic root of 542512520 is about 815.5862994903.

Adding to 542512520 its reverse (25215245), we get a palindrome (567727765).

The spelling of 542512520 in words is "five hundred forty-two million, five hundred twelve thousand, five hundred twenty".