505610113 has 4 divisors (see below), whose sum is σ = 507137968. Its totient is φ = 504082260.

The previous prime is 505610111. The next prime is 505610167. The reversal of 505610113 is 311016505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311016505 = 5 ⋅62203301.

It is a cyclic number.

It is not a de Polignac number, because 505610113 - 2¹ = 505610111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505610111) 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, 763431 + ... + 764092.

It is an arithmetic number, because the mean of its divisors is an integer number (126784492).

Almost surely, 2^505610113 is an apocalyptic number.

It is an amenable number.

505610113 is a deficient number, since it is larger than the sum of its proper divisors (1527855).

505610113 is a wasteful number, since it uses less digits than its factorization.

505610113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527854.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 505610113 is about 22485.7757927095. The cubic root of 505610113 is about 796.6579920236.

Adding to 505610113 its reverse (311016505), we get a palindrome (816626618).

It can be divided in two parts, 5056 and 10113, that multiplied together give a triangular number (51131328 = T₁₀₁₁₂).

The spelling of 505610113 in words is "five hundred five million, six hundred ten thousand, one hundred thirteen".