5661520030 has 32 divisors (see below), whose sum is σ = 10794060000. Its totient is φ = 2130631680.

The previous prime is 5661520027. The next prime is 5661520043. The reversal of 5661520030 is 300251665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751221 + ... + 758719.

It is an arithmetic number, because the mean of its divisors is an integer number (337314375).

Almost surely, 2^5661520030 is an apocalyptic number.

5661520030 is a deficient number, since it is larger than the sum of its proper divisors (5132539970).

5661520030 is a wasteful number, since it uses less digits than its factorization.

5661520030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 5661520030 is about 75243.0729702077. The cubic root of 5661520030 is about 1782.2871779152.

Adding to 5661520030 its reverse (300251665), we get a palindrome (5961771695).

The spelling of 5661520030 in words is "five billion, six hundred sixty-one million, five hundred twenty thousand, thirty".