542178558 has 24 divisors (see below), whose sum is σ = 1199716128. Its totient is φ = 176880672.

The previous prime is 542178557. The next prime is 542178601. The reversal of 542178558 is 855871245.

542178558 is a `hidden beast` number, since 5 + 4 + 21 + 78 + 558 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542178551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319591 + ... + 321282.

It is an arithmetic number, because the mean of its divisors is an integer number (49988172).

Almost surely, 2^542178558 is an apocalyptic number.

542178558 is an abundant number, since it is smaller than the sum of its proper divisors (657537570).

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

542178558 is a wasteful number, since it uses less digits than its factorization.

542178558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640928 (or 640925 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The square root of 542178558 is about 23284.7279992703. The cubic root of 542178558 is about 815.4189111931.

The spelling of 542178558 in words is "five hundred forty-two million, one hundred seventy-eight thousand, five hundred fifty-eight".