538280543 has 4 divisors (see below), whose sum is σ = 539150760. Its totient is φ = 537410328.

The previous prime is 538280471. The next prime is 538280557. The reversal of 538280543 is 345082835.

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 538280543 - 2¹⁴ = 538264159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538280497 and 538280506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538280563) 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, 434180 + ... + 435417.

It is an arithmetic number, because the mean of its divisors is an integer number (134787690).

Almost surely, 2^538280543 is an apocalyptic number.

538280543 is a deficient number, since it is larger than the sum of its proper divisors (870217).

538280543 is an equidigital number, since it uses as much as digits as its factorization.

538280543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870216.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 538280543 is about 23200.8737550981. The cubic root of 538280543 is about 813.4600466414.

The spelling of 538280543 in words is "five hundred thirty-eight million, two hundred eighty thousand, five hundred forty-three".