505522701 has 10 divisors (see below), whose sum is σ = 755163662. Its totient is φ = 337015080.

The previous prime is 505522697. The next prime is 505522711. The reversal of 505522701 is 107225505.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 437855625 + 67667076 = 20925^2 + 8226^2 .

It is not a de Polignac number, because 505522701 - 2² = 505522697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505522711) 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 9 ways as a sum of consecutive naturals, for example, 3120430 + ... + 3120591.

Almost surely, 2^505522701 is an apocalyptic number.

It is an amenable number.

505522701 is a deficient number, since it is larger than the sum of its proper divisors (249640961).

505522701 is an equidigital number, since it uses as much as digits as its factorization.

505522701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241033 (or 6241024 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 505522701 is about 22483.8319910108. The cubic root of 505522701 is about 796.6120795178.

The spelling of 505522701 in words is "five hundred five million, five hundred twenty-two thousand, seven hundred one".