5661064 has 8 divisors (see below), whose sum is σ = 10614510. Its totient is φ = 2830528.

The previous prime is 5661041. The next prime is 5661067. The reversal of 5661064 is 4601665.

It can be written as a sum of positive squares in only one way, i.e., 5098564 + 562500 = 2258^2 + 750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×5661064² = 64095291224192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (5661067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353809 + ... + 353824.

Almost surely, 2^5661064 is an apocalyptic number.

It is an amenable number.

5661064 is a deficient number, since it is larger than the sum of its proper divisors (4953446).

5661064 is a wasteful number, since it uses less digits than its factorization.

5661064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707639 (or 707635 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5661064 is about 2379.2990564450. The cubic root of 5661064 is about 178.2239322790.

The spelling of 5661064 in words is "five million, six hundred sixty-one thousand, sixty-four".