503374861 has 4 divisors (see below), whose sum is σ = 549136224. Its totient is φ = 457613500.

The previous prime is 503374829. The next prime is 503374897. The reversal of 503374861 is 168473305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503374861 - 2⁵ = 503374829 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 503374861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503374801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22880665 + ... + 22880686.

It is an arithmetic number, because the mean of its divisors is an integer number (137284056).

Almost surely, 2^503374861 is an apocalyptic number.

It is an amenable number.

503374861 is a deficient number, since it is larger than the sum of its proper divisors (45761363).

503374861 is a wasteful number, since it uses less digits than its factorization.

503374861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45761362.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 503374861 is about 22436.0170484870. The cubic root of 503374861 is about 795.4822758386.

The spelling of 503374861 in words is "five hundred three million, three hundred seventy-four thousand, eight hundred sixty-one".