505285501 has 12 divisors (see below), whose sum is σ = 595225920. Its totient is φ = 427616280.

The previous prime is 505285481. The next prime is 505285507. The reversal of 505285501 is 105582505.

It is not a de Polignac number, because 505285501 - 2²¹ = 503188349 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 (505285507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61395 + ... + 69136.

It is an arithmetic number, because the mean of its divisors is an integer number (49602160).

Almost surely, 2^505285501 is an apocalyptic number.

It is an amenable number.

505285501 is a deficient number, since it is larger than the sum of its proper divisors (89940419).

505285501 is a wasteful number, since it uses less digits than its factorization.

505285501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130624 (or 130617 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 505285501 is about 22478.5564705566. The cubic root of 505285501 is about 796.4874653007.

The spelling of 505285501 in words is "five hundred five million, two hundred eighty-five thousand, five hundred one".