5661266 has 16 divisors (see below), whose sum is σ = 9543744. Its totient is φ = 2499024.

The previous prime is 5661247. The next prime is 5661277. The reversal of 5661266 is 6621665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4136 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (596484).

Almost surely, 2^5661266 is an apocalyptic number.

5661266 is a deficient number, since it is larger than the sum of its proper divisors (3882478).

5661266 is a wasteful number, since it uses less digits than its factorization.

5661266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505.

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

The square root of 5661266 is about 2379.3415055431. The cubic root of 5661266 is about 178.2260520693.

The spelling of 5661266 in words is "five million, six hundred sixty-one thousand, two hundred sixty-six".