542178803 has 4 divisors (see below), whose sum is σ = 545174448. Its totient is φ = 539183160.

The previous prime is 542178799. The next prime is 542178827. The reversal of 542178803 is 308871245.

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

It is a cyclic number.

It is not a de Polignac number, because 542178803 - 2² = 542178799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542178893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1497551 + ... + 1497912.

It is an arithmetic number, because the mean of its divisors is an integer number (136293612).

Almost surely, 2^542178803 is an apocalyptic number.

542178803 is a deficient number, since it is larger than the sum of its proper divisors (2995645).

542178803 is a wasteful number, since it uses less digits than its factorization.

542178803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995644.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 542178803 is about 23284.7332602287. The cubic root of 542178803 is about 815.4190340171.

The spelling of 542178803 in words is "five hundred forty-two million, one hundred seventy-eight thousand, eight hundred three".