505230541 has 4 divisors (see below), whose sum is σ = 508621500. Its totient is φ = 501839584.

The previous prime is 505230499. The next prime is 505230623. The reversal of 505230541 is 145032505.

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 121462441 + 383768100 = 11021^2 + 19590^2 .

It is a cyclic number.

It is not a de Polignac number, because 505230541 - 2¹⁵ = 505197773 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505230641) 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, 1695256 + ... + 1695553.

It is an arithmetic number, because the mean of its divisors is an integer number (127155375).

Almost surely, 2^505230541 is an apocalyptic number.

It is an amenable number.

505230541 is a deficient number, since it is larger than the sum of its proper divisors (3390959).

505230541 is a wasteful number, since it uses less digits than its factorization.

505230541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390958.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 505230541 is about 22477.3339388816. Note that the first 3 decimals coincide. The cubic root of 505230541 is about 796.4585862226.

The spelling of 505230541 in words is "five hundred five million, two hundred thirty thousand, five hundred forty-one".