542617572 has 72 divisors (see below), whose sum is σ = 1497877920. Its totient is φ = 152396160.

The previous prime is 542617567. The next prime is 542617613. The reversal of 542617572 is 275716245.

It is a self number, because there is not a number n which added to its sum of digits gives 542617572.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26872 + ... + 42512.

It is an arithmetic number, because the mean of its divisors is an integer number (20803860).

Almost surely, 2^542617572 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 542617572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748938960).

542617572 is an abundant number, since it is smaller than the sum of its proper divisors (955260348).

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

542617572 is a wasteful number, since it uses less digits than its factorization.

542617572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15721 (or 15712 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 542617572 is about 23294.1531719872. The cubic root of 542617572 is about 815.6389394074.

The spelling of 542617572 in words is "five hundred forty-two million, six hundred seventeen thousand, five hundred seventy-two".