523400415753503 has 16 divisors (see below), whose sum is σ = 529519648572096. Its totient is φ = 517318757464320.

The previous prime is 523400415753491. The next prime is 523400415753511. The reversal of 523400415753503 is 305357514004325.

It is a cyclic number.

It is not a de Polignac number, because 523400415753503 - 2²⁰ = 523400414704927 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 (523400415753703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86535950 + ... + 92386532.

It is an arithmetic number, because the mean of its divisors is an integer number (33094978035756).

Almost surely, 2^{523400415753503} is an apocalyptic number.

523400415753503 is a deficient number, since it is larger than the sum of its proper divisors (6119232818593).

523400415753503 is a wasteful number, since it uses less digits than its factorization.

523400415753503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853794.

The product of its (nonzero) digits is 3780000, while the sum is 47.

Adding to 523400415753503 its reverse (305357514004325), we get a palindrome (828757929757828).

The spelling of 523400415753503 in words is "five hundred twenty-three trillion, four hundred billion, four hundred fifteen million, seven hundred fifty-three thousand, five hundred three".