542508447 has 16 divisors (see below), whose sum is σ = 790616960. Its totient is φ = 328866912.

The previous prime is 542508431. The next prime is 542508457. The reversal of 542508447 is 744805245.

It is not a de Polignac number, because 542508447 - 2⁴ = 542508431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542508457) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 101197 + ... + 106422.

It is an arithmetic number, because the mean of its divisors is an integer number (49413560).

Almost surely, 2^542508447 is an apocalyptic number.

542508447 is a deficient number, since it is larger than the sum of its proper divisors (248108513).

542508447 is a wasteful number, since it uses less digits than its factorization.

542508447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207702.

The product of its (nonzero) digits is 179200, while the sum is 39.

The square root of 542508447 is about 23291.8107282367. The cubic root of 542508447 is about 815.5842584367.

The spelling of 542508447 in words is "five hundred forty-two million, five hundred eight thousand, four hundred forty-seven".