542671556 has 12 divisors (see below), whose sum is σ = 1085343168. Its totient is φ = 232573512.

The previous prime is 542671553. The next prime is 542671573. The reversal of 542671556 is 655176245.

542671556 is an admirable number.

It is a super-2 number, since 2×542671556² = 588984835382922272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (542671553) 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, 9690536 + ... + 9690591.

It is an arithmetic number, because the mean of its divisors is an integer number (90445264).

Almost surely, 2^542671556 is an apocalyptic number.

It is an amenable number.

542671556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

542671556 is a wasteful number, since it uses less digits than its factorization.

542671556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19381138 (or 19381136 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 542671556 is about 23295.3118888758. The cubic root of 542671556 is about 815.6659873043.

The spelling of 542671556 in words is "five hundred forty-two million, six hundred seventy-one thousand, five hundred fifty-six".