542513620 has 48 divisors (see below), whose sum is σ = 1246492800. Its totient is φ = 196699520.

The previous prime is 542513603. The next prime is 542513663. The reversal of 542513620 is 26315245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75546 + ... + 82414.

It is an arithmetic number, because the mean of its divisors is an integer number (25968600).

Almost surely, 2^542513620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542513620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623246400).

542513620 is an abundant number, since it is smaller than the sum of its proper divisors (703979180).

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

542513620 is a wasteful number, since it uses less digits than its factorization.

542513620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7248 (or 7246 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 542513620 is about 23291.9217755856. The cubic root of 542513620 is about 815.5868507183.

Adding to 542513620 its reverse (26315245), we get a palindrome (568828865).

The spelling of 542513620 in words is "five hundred forty-two million, five hundred thirteen thousand, six hundred twenty".