505661241 has 8 divisors (see below), whose sum is σ = 690659424. Its totient is φ = 328885280.

The previous prime is 505661237. The next prime is 505661249. The reversal of 505661241 is 142166505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505661241 - 2² = 505661237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505661199 and 505661208.

It is not an unprimeable number, because it can be changed into a prime (505661249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055411 + ... + 2055656.

It is an arithmetic number, because the mean of its divisors is an integer number (86332428).

Almost surely, 2^505661241 is an apocalyptic number.

It is an amenable number.

505661241 is a deficient number, since it is larger than the sum of its proper divisors (184998183).

505661241 is a wasteful number, since it uses less digits than its factorization.

505661241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111111.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 505661241 is about 22486.9126604788. The cubic root of 505661241 is about 796.6848441744.

The spelling of 505661241 in words is "five hundred five million, six hundred sixty-one thousand, two hundred forty-one".