5661156 has 24 divisors (see below), whose sum is σ = 13335840. Its totient is φ = 1868992.

The previous prime is 5661143. The next prime is 5661163. The reversal of 5661156 is 6511665.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921 + ... + 3488.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^5661156 is an apocalyptic number.

It is an amenable number.

5661156 is an abundant number, since it is smaller than the sum of its proper divisors (7674684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5661156 is a wasteful number, since it uses less digits than its factorization.

5661156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523 (or 4521 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 5661156 is about 2379.3183897915. The cubic root of 5661156 is about 178.2248977343.

The spelling of 5661156 in words is "five million, six hundred sixty-one thousand, one hundred fifty-six".