542551112020 has 12 divisors (see below), whose sum is σ = 1139357335284. Its totient is φ = 217020444800.

The previous prime is 542551112017. The next prime is 542551112039. The reversal of 542551112020 is 20211155245.

It can be written as a sum of positive squares in 2 ways, for example, as 139496274064 + 403054837956 = 373492^2 + 634866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 542551112020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13563777781 + ... + 13563777820.

It is an arithmetic number, because the mean of its divisors is an integer number (94946444607).

Almost surely, 2^542551112020 is an apocalyptic number.

It is an amenable number.

542551112020 is an abundant number, since it is smaller than the sum of its proper divisors (596806223264).

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

542551112020 is a wasteful number, since it uses less digits than its factorization.

542551112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27127555610 (or 27127555608 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 542551112020 its reverse (20211155245), we get a palindrome (562762267265).

The spelling of 542551112020 in words is "five hundred forty-two billion, five hundred fifty-one million, one hundred twelve thousand, twenty".