503360661 has 8 divisors (see below), whose sum is σ = 671864544. Its totient is φ = 335215280.

The previous prime is 503360657. The next prime is 503360687. The reversal of 503360661 is 166063305.

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 503360661 - 2² = 503360657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503360621) 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, 86331 + ... + 91976.

It is an arithmetic number, because the mean of its divisors is an integer number (83983068).

Almost surely, 2^503360661 is an apocalyptic number.

It is an amenable number.

503360661 is a deficient number, since it is larger than the sum of its proper divisors (168503883).

503360661 is a wasteful number, since it uses less digits than its factorization.

503360661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179251.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 503360661 is about 22435.7005907995. The cubic root of 503360661 is about 795.4747956912.

The spelling of 503360661 in words is "five hundred three million, three hundred sixty thousand, six hundred sixty-one".