503240105 has 4 divisors (see below), whose sum is σ = 603888132. Its totient is φ = 402592080.

The previous prime is 503240093. The next prime is 503240123. The reversal of 503240105 is 501042305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 301230736 + 202009369 = 17356^2 + 14213^2 .

It is not a de Polignac number, because 503240105 - 2⁶ = 503240041 is a prime.

It is a super-2 number, since 2×503240105² = 506501206560822050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50324006 + ... + 50324015.

It is an arithmetic number, because the mean of its divisors is an integer number (150972033).

Almost surely, 2^503240105 is an apocalyptic number.

It is an amenable number.

503240105 is a deficient number, since it is larger than the sum of its proper divisors (100648027).

503240105 is a wasteful number, since it uses less digits than its factorization.

503240105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100648026.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 503240105 is about 22433.0137297689. The cubic root of 503240105 is about 795.4112846252.

The spelling of 503240105 in words is "five hundred three million, two hundred forty thousand, one hundred five".