542738263 has 4 divisors (see below), whose sum is σ = 542796480. Its totient is φ = 542680048.

The previous prime is 542738201. The next prime is 542738267. The reversal of 542738263 is 362837245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 362837245 = 5 ⋅72567449.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542738263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542738267) 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, 11623 + ... + 34936.

It is an arithmetic number, because the mean of its divisors is an integer number (135699120).

Almost surely, 2^542738263 is an apocalyptic number.

542738263 is a deficient number, since it is larger than the sum of its proper divisors (58217).

542738263 is a wasteful number, since it uses less digits than its factorization.

542738263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58216.

The product of its digits is 241920, while the sum is 40.

The square root of 542738263 is about 23296.7436136470. The cubic root of 542738263 is about 815.6994073973.

The spelling of 542738263 in words is "five hundred forty-two million, seven hundred thirty-eight thousand, two hundred sixty-three".