501655055 has 16 divisors (see below), whose sum is σ = 662857344. Its totient is φ = 361426080.

The previous prime is 501655027. The next prime is 501655061. The reversal of 501655055 is 550556105.

It is not a de Polignac number, because 501655055 - 2¹⁰ = 501654031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36737 + ... + 48506.

It is an arithmetic number, because the mean of its divisors is an integer number (41428584).

Almost surely, 2^501655055 is an apocalyptic number.

501655055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

501655055 is a deficient number, since it is larger than the sum of its proper divisors (161202289).

501655055 is a wasteful number, since it uses less digits than its factorization.

501655055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85366.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 501655055 is about 22397.6573551789. The cubic root of 501655055 is about 794.5753068353.

It can be divided in two parts, 501 and 655055, that added together give a palindrome (655556).

The spelling of 501655055 in words is "five hundred one million, six hundred fifty-five thousand, fifty-five".