505255061 has 4 divisors (see below), whose sum is σ = 507221292. Its totient is φ = 503288832.

The previous prime is 505255057. The next prime is 505255073. The reversal of 505255061 is 160552505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326524900 + 178730161 = 18070^2 + 13369^2 .

It is a cyclic number.

It is not a de Polignac number, because 505255061 - 2² = 505255057 is a prime.

It is a super-2 number, since 2×505255061² = 510565353332227442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505255021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982730 + ... + 983243.

It is an arithmetic number, because the mean of its divisors is an integer number (126805323).

Almost surely, 2^505255061 is an apocalyptic number.

It is an amenable number.

505255061 is a deficient number, since it is larger than the sum of its proper divisors (1966231).

505255061 is a wasteful number, since it uses less digits than its factorization.

505255061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966230.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 505255061 is about 22477.8793706168. The cubic root of 505255061 is about 796.4714706697.

The spelling of 505255061 in words is "five hundred five million, two hundred fifty-five thousand, sixty-one".