5207661 has 24 divisors (see below), whose sum is σ = 8067384. Its totient is φ = 3225600.

The previous prime is 5207633. The next prime is 5207677. The reversal of 5207661 is 1667025.

It can be written as a sum of positive squares in 4 ways, for example, as 2232036 + 2975625 = 1494^2 + 1725^2 .

It is not a de Polignac number, because 5207661 - 2⁹ = 5207149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5207611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15285 + ... + 15621.

It is an arithmetic number, because the mean of its divisors is an integer number (336141).

Almost surely, 2^5207661 is an apocalyptic number.

5207661 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5207661 is a deficient number, since it is larger than the sum of its proper divisors (2859723).

5207661 is a wasteful number, since it uses less digits than its factorization.

5207661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 5207661 is about 2282.0300173311. The cubic root of 5207661 is about 173.3328595483.

The spelling of 5207661 in words is "five million, two hundred seven thousand, six hundred sixty-one".