5626661 has 4 divisors (see below), whose sum is σ = 5632032. Its totient is φ = 5621292.

The previous prime is 5626657. The next prime is 5626693. The reversal of 5626661 is 1666265.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1666265 = 5 ⋅333253.

It is a cyclic number.

It is not a de Polignac number, because 5626661 - 2² = 5626657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5626601) 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, 545 + ... + 3398.

It is an arithmetic number, because the mean of its divisors is an integer number (1408008).

Almost surely, 2^5626661 is an apocalyptic number.

It is an amenable number.

5626661 is a deficient number, since it is larger than the sum of its proper divisors (5371).

5626661 is a wasteful number, since it uses less digits than its factorization.

5626661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370.

The product of its digits is 12960, while the sum is 32.

The square root of 5626661 is about 2372.0583888260. The cubic root of 5626661 is about 177.8621686863.

The spelling of 5626661 in words is "five million, six hundred twenty-six thousand, six hundred sixty-one".