505405733 has 8 divisors (see below), whose sum is σ = 611583552. Its totient is φ = 407722176.

The previous prime is 505405709. The next prime is 505405763. The reversal of 505405733 is 337504505.

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 505405733 - 2²⁶ = 438296869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505405733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505405763) 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, 2123435 + ... + 2123672.

It is an arithmetic number, because the mean of its divisors is an integer number (76447944).

Almost surely, 2^505405733 is an apocalyptic number.

It is an amenable number.

505405733 is a deficient number, since it is larger than the sum of its proper divisors (106177819).

505405733 is a wasteful number, since it uses less digits than its factorization.

505405733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247131.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 505405733 is about 22481.2306825049. The cubic root of 505405733 is about 796.5506346615.

The spelling of 505405733 in words is "five hundred five million, four hundred five thousand, seven hundred thirty-three".