5661588826 has 4 divisors (see below), whose sum is σ = 8492383242. Its totient is φ = 2830794412.

The previous prime is 5661588811. The next prime is 5661588871. The reversal of 5661588826 is 6288851665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6288851665 = 5 ⋅1257770333.

It can be written as a sum of positive squares in only one way, i.e., 3221130025 + 2440458801 = 56755^2 + 49401^2 .

It is a super-3 number, since 3×5661588826³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1415397205 + ... + 1415397208.

Almost surely, 2^5661588826 is an apocalyptic number.

5661588826 is a deficient number, since it is larger than the sum of its proper divisors (2830794416).

5661588826 is a wasteful number, since it uses less digits than its factorization.

5661588826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830794415.

The product of its digits is 5529600, while the sum is 55.

The square root of 5661588826 is about 75243.5301271810. The cubic root of 5661588826 is about 1782.2943970443.

The spelling of 5661588826 in words is "five billion, six hundred sixty-one million, five hundred eighty-eight thousand, eight hundred twenty-six".