542740556 has 12 divisors (see below), whose sum is σ = 950186160. Its totient is φ = 271258800.

The previous prime is 542740553. The next prime is 542740571. The reversal of 542740556 is 655047245.

It is a super-2 number, since 2×542740556² = 589134622254378272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542740553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16391 + ... + 36798.

It is an arithmetic number, because the mean of its divisors is an integer number (79182180).

Almost surely, 2^542740556 is an apocalyptic number.

It is an amenable number.

542740556 is a deficient number, since it is larger than the sum of its proper divisors (407445604).

542740556 is a wasteful number, since it uses less digits than its factorization.

542740556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55744 (or 55742 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 542740556 is about 23296.7928264815. The cubic root of 542740556 is about 815.7005561377.

The spelling of 542740556 in words is "five hundred forty-two million, seven hundred forty thousand, five hundred fifty-six".