542021255 has 4 divisors (see below), whose sum is σ = 650425512. Its totient is φ = 433617000.

The previous prime is 542021239. The next prime is 542021273. The reversal of 542021255 is 552120245.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 542021255 - 2⁴ = 542021239 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 54202121 + ... + 54202130.

It is an arithmetic number, because the mean of its divisors is an integer number (162606378).

Almost surely, 2^542021255 is an apocalyptic number.

542021255 is a deficient number, since it is larger than the sum of its proper divisors (108404257).

542021255 is a wasteful number, since it uses less digits than its factorization.

542021255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108404256.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 542021255 is about 23281.3499393828. The cubic root of 542021255 is about 815.3400440340.

The spelling of 542021255 in words is "five hundred forty-two million, twenty-one thousand, two hundred fifty-five".