5200661 has 4 divisors (see below), whose sum is σ = 5474400. Its totient is φ = 4926924.

The previous prime is 5200651. The next prime is 5200667. The reversal of 5200661 is 1660025.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5200661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5200667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136841 + ... + 136878.

It is an arithmetic number, because the mean of its divisors is an integer number (1368600).

Almost surely, 2^5200661 is an apocalyptic number.

It is an amenable number.

5200661 is a deficient number, since it is larger than the sum of its proper divisors (273739).

5200661 is a wasteful number, since it uses less digits than its factorization.

5200661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273738.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 5200661 is about 2280.4957794304. The cubic root of 5200661 is about 173.2551615783.

Adding to 5200661 its reverse (1660025), we get a palindrome (6860686).

The spelling of 5200661 in words is "five million, two hundred thousand, six hundred sixty-one".