505501061 has 32 divisors (see below), whose sum is σ = 604558080. Its totient is φ = 418176000.

The previous prime is 505501057. The next prime is 505501081. The reversal of 505501061 is 160105505.

It is a cyclic number.

It is not a de Polignac number, because 505501061 - 2² = 505501057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 (505501081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573341 + ... + 574221.

It is an arithmetic number, because the mean of its divisors is an integer number (18892440).

Almost surely, 2^505501061 is an apocalyptic number.

It is an amenable number.

505501061 is a deficient number, since it is larger than the sum of its proper divisors (99057019).

505501061 is a wasteful number, since it uses less digits than its factorization.

505501061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 505501061 is about 22483.3507511670. The cubic root of 505501061 is about 796.6007124507.

Adding to 505501061 its reverse (160105505), we get a palindrome (665606566).

The spelling of 505501061 in words is "five hundred five million, five hundred one thousand, sixty-one".