503135450453 has 2 divisors, whose sum is σ = 503135450454. Its totient is φ = 503135450452.

The previous prime is 503135450449. The next prime is 503135450491. The reversal of 503135450453 is 354054531305.

It is an a-pointer prime, because the next prime (503135450491) can be obtained adding 503135450453 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302810279524 + 200325170929 = 550282^2 + 447577^2 .

It is a cyclic number.

It is not a de Polignac number, because 503135450453 - 2² = 503135450449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503135450423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251567725226 + 251567725227.

It is an arithmetic number, because the mean of its divisors is an integer number (251567725227).

Almost surely, 2^503135450453 is an apocalyptic number.

It is an amenable number.

503135450453 is a deficient number, since it is larger than the sum of its proper divisors (1).

503135450453 is an equidigital number, since it uses as much as digits as its factorization.

503135450453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 503135450453 its reverse (354054531305), we get a palindrome (857189981758).

The spelling of 503135450453 in words is "five hundred three billion, one hundred thirty-five million, four hundred fifty thousand, four hundred fifty-three".