505533350501 has 4 divisors (see below), whose sum is σ = 509513928192. Its totient is φ = 501552772812.

The previous prime is 505533350489. The next prime is 505533350513. The reversal of 505533350501 is 105053335505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (505533350489) and next prime (505533350513).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505533350501 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 (505533350591) 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, 1990288655 + ... + 1990288908.

It is an arithmetic number, because the mean of its divisors is an integer number (127378482048).

Almost surely, 2^505533350501 is an apocalyptic number.

It is an amenable number.

505533350501 is a deficient number, since it is larger than the sum of its proper divisors (3980577691).

505533350501 is a wasteful number, since it uses less digits than its factorization.

505533350501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980577690.

The product of its (nonzero) digits is 84375, while the sum is 35.

The spelling of 505533350501 in words is "five hundred five billion, five hundred thirty-three million, three hundred fifty thousand, five hundred one".