503523253145523 has 8 divisors (see below), whose sum is σ = 723007748106448. Its totient is φ = 309860463474144.

The previous prime is 503523253145491. The next prime is 503523253145651. The reversal of 503523253145523 is 325541352325305.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503523253145523 - 2⁵ = 503523253145491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503523253145723) 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 7 ways as a sum of consecutive naturals, for example, 6455426322340 + ... + 6455426322417.

It is an arithmetic number, because the mean of its divisors is an integer number (90375968513306).

Almost surely, 2^{503523253145523} is an apocalyptic number.

503523253145523 is a deficient number, since it is larger than the sum of its proper divisors (219484494960925).

503523253145523 is a wasteful number, since it uses less digits than its factorization.

503523253145523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910852644773.

The product of its (nonzero) digits is 8100000, while the sum is 48.

The spelling of 503523253145523 in words is "five hundred three trillion, five hundred twenty-three billion, two hundred fifty-three million, one hundred forty-five thousand, five hundred twenty-three".