503232420461 has 4 divisors (see below), whose sum is σ = 503240263932. Its totient is φ = 503224576992.

The previous prime is 503232420443. The next prime is 503232420491. The reversal of 503232420461 is 164024232305.

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 420169722025 + 83062698436 = 648205^2 + 288206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503232420461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503232420401) 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, 3824696 + ... + 3954081.

It is an arithmetic number, because the mean of its divisors is an integer number (125810065983).

Almost surely, 2^503232420461 is an apocalyptic number.

It is an amenable number.

503232420461 is a deficient number, since it is larger than the sum of its proper divisors (7843471).

503232420461 is an equidigital number, since it uses as much as digits as its factorization.

503232420461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7843470.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 503232420461 its reverse (164024232305), we get a palindrome (667256652766).

The spelling of 503232420461 in words is "five hundred three billion, two hundred thirty-two million, four hundred twenty thousand, four hundred sixty-one".