505535145533 has 8 divisors (see below), whose sum is σ = 551682502560. Its totient is φ = 459419391280.

The previous prime is 505535145491. The next prime is 505535145539. The reversal of 505535145533 is 335541535505.

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

It is a cyclic number.

It is not a de Polignac number, because 505535145533 - 2⁶ = 505535145469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505535145539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7867235 + ... + 7931232.

It is an arithmetic number, because the mean of its divisors is an integer number (68960312820).

Almost surely, 2^505535145533 is an apocalyptic number.

It is an amenable number.

505535145533 is a deficient number, since it is larger than the sum of its proper divisors (46147357027).

505535145533 is a wasteful number, since it uses less digits than its factorization.

505535145533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801387.

The product of its (nonzero) digits is 1687500, while the sum is 44.

The spelling of 505535145533 in words is "five hundred five billion, five hundred thirty-five million, one hundred forty-five thousand, five hundred thirty-three".