5661026500 has 24 divisors (see below), whose sum is σ = 12363682968. Its totient is φ = 2264410400.

The previous prime is 5661026453. The next prime is 5661026509. The reversal of 5661026500 is 56201665.

It can be written as a sum of positive squares in 4 ways, for example, as 583608964 + 5077417536 = 24158^2 + 71256^2 .

It is not an unprimeable number, because it can be changed into a prime (5661026509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5660527 + ... + 5661526.

It is an arithmetic number, because the mean of its divisors is an integer number (515153457).

Almost surely, 2^5661026500 is an apocalyptic number.

5661026500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5661026500 is an abundant number, since it is smaller than the sum of its proper divisors (6702656468).

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

5661026500 is a wasteful number, since it uses less digits than its factorization.

5661026500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322072 (or 11322060 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 5661026500 is about 75239.7933277332. The cubic root of 5661026500 is about 1782.2353874804.

The spelling of 5661026500 in words is "five billion, six hundred sixty-one million, twenty-six thousand, five hundred".