542493056 has 64 divisors (see below), whose sum is σ = 1275048960. Its totient is φ = 224985600.

The previous prime is 542493047. The next prime is 542493071. The reversal of 542493056 is 650394245.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18011 + ... + 37541.

It is an arithmetic number, because the mean of its divisors is an integer number (19922640).

Almost surely, 2^542493056 is an apocalyptic number.

542493056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542493056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637524480).

542493056 is an abundant number, since it is smaller than the sum of its proper divisors (732555904).

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

542493056 is a wasteful number, since it uses less digits than its factorization.

542493056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19583 (or 19571 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 542493056 is about 23291.4803307991. The cubic root of 542493056 is about 815.5765456376.

The spelling of 542493056 in words is "five hundred forty-two million, four hundred ninety-three thousand, fifty-six".