542763321 has 4 divisors (see below), whose sum is σ = 723684432. Its totient is φ = 361842212.

The previous prime is 542763317. The next prime is 542763337. The reversal of 542763321 is 123367245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542763321 - 2² = 542763317 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542762321) 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, 90460551 + ... + 90460556.

It is an arithmetic number, because the mean of its divisors is an integer number (180921108).

Almost surely, 2^542763321 is an apocalyptic number.

It is an amenable number.

542763321 is a deficient number, since it is larger than the sum of its proper divisors (180921111).

542763321 is a wasteful number, since it uses less digits than its factorization.

542763321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180921110.

The product of its digits is 30240, while the sum is 33.

The square root of 542763321 is about 23297.2814079240. The cubic root of 542763321 is about 815.7119607050.

The spelling of 542763321 in words is "five hundred forty-two million, seven hundred sixty-three thousand, three hundred twenty-one".