542436503 has 16 divisors (see below), whose sum is σ = 653417280. Its totient is φ = 440434176.

The previous prime is 542436487. The next prime is 542436523. The reversal of 542436503 is 305634245.

It is not a de Polignac number, because 542436503 - 2⁴ = 542436487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542436503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542436523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14450 + ... + 35967.

It is an arithmetic number, because the mean of its divisors is an integer number (40838580).

Almost surely, 2^542436503 is an apocalyptic number.

542436503 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

542436503 is a deficient number, since it is larger than the sum of its proper divisors (110980777).

542436503 is a wasteful number, since it uses less digits than its factorization.

542436503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50506.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 542436503 is about 23290.2662715565. The cubic root of 542436503 is about 815.5482043205.

The spelling of 542436503 in words is "five hundred forty-two million, four hundred thirty-six thousand, five hundred three".