542843503 has 2 divisors, whose sum is σ = 542843504. Its totient is φ = 542843502.

The previous prime is 542843501. The next prime is 542843513. The reversal of 542843503 is 305348245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542843503 - 2¹ = 542843501 is a prime.

It is a super-2 number, since 2×542843503² = 589358137498622018, which contains 22 as substring.

Together with 542843501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542843501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271421751 + 271421752.

It is an arithmetic number, because the mean of its divisors is an integer number (271421752).

Almost surely, 2^542843503 is an apocalyptic number.

542843503 is a deficient number, since it is larger than the sum of its proper divisors (1).

542843503 is an equidigital number, since it uses as much as digits as its factorization.

542843503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 542843503 is about 23299.0021889350. The cubic root of 542843503 is about 815.7521268900.

The spelling of 542843503 in words is "five hundred forty-two million, eight hundred forty-three thousand, five hundred three".