542530725 has 72 divisors (see below), whose sum is σ = 994269696. Its totient is φ = 260832000.

The previous prime is 542530669. The next prime is 542530733. The reversal of 542530725 is 527035245.

It is not a de Polignac number, because 542530725 - 2¹¹ = 542528677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1733169 + ... + 1733481.

Almost surely, 2^542530725 is an apocalyptic number.

542530725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

542530725 is a deficient number, since it is larger than the sum of its proper divisors (451738971).

542530725 is a wasteful number, since it uses less digits than its factorization.

542530725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 542530725 is about 23292.2889600829. The cubic root of 542530725 is about 815.5954222183.

The spelling of 542530725 in words is "five hundred forty-two million, five hundred thirty thousand, seven hundred twenty-five".