542443551 has 16 divisors (see below), whose sum is σ = 779556960. Its totient is φ = 333527040.

The previous prime is 542443547. The next prime is 542443607. The reversal of 542443551 is 155344245.

It is not a de Polignac number, because 542443551 - 2² = 542443547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542443511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46255 + ... + 56783.

It is an arithmetic number, because the mean of its divisors is an integer number (48722310).

Almost surely, 2^542443551 is an apocalyptic number.

542443551 is a deficient number, since it is larger than the sum of its proper divisors (237113409).

542443551 is a wasteful number, since it uses less digits than its factorization.

542443551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11866.

The product of its digits is 48000, while the sum is 33.

The square root of 542443551 is about 23290.4175789100. The cubic root of 542443551 is about 815.5517365059.

Adding to 542443551 its reverse (155344245), we get a palindrome (697787796).

The spelling of 542443551 in words is "five hundred forty-two million, four hundred forty-three thousand, five hundred fifty-one".