505775141 has 4 divisors (see below), whose sum is σ = 506237292. Its totient is φ = 505312992.

The previous prime is 505775119. The next prime is 505775147. The reversal of 505775141 is 141577505.

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 363664900 + 142110241 = 19070^2 + 11921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505775141 is a prime.

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 (505775147) 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, 229430 + ... + 231623.

It is an arithmetic number, because the mean of its divisors is an integer number (126559323).

Almost surely, 2^505775141 is an apocalyptic number.

It is an amenable number.

505775141 is a deficient number, since it is larger than the sum of its proper divisors (462151).

505775141 is a wasteful number, since it uses less digits than its factorization.

505775141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462150.

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 505775141 is about 22489.4451020918. The cubic root of 505775141 is about 796.7446573352.

The spelling of 505775141 in words is "five hundred five million, seven hundred seventy-five thousand, one hundred forty-one".