3561520224 has 24 divisors (see below), whose sum is σ = 9348990840. Its totient is φ = 1187173376.

The previous prime is 3561520223. The next prime is 3561520241. The reversal of 3561520224 is 4220251653.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×3561520224² = 25368852611922020352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3561520191 and 3561520200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561520223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18549489 + ... + 18549680.

It is an arithmetic number, because the mean of its divisors is an integer number (389541285).

Almost surely, 2^3561520224 is an apocalyptic number.

It is an amenable number.

3561520224 is an abundant number, since it is smaller than the sum of its proper divisors (5787470616).

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

3561520224 is a wasteful number, since it uses less digits than its factorization.

3561520224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37099182 (or 37099174 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 3561520224 is about 59678.4737070244. The cubic root of 3561520224 is about 1527.1386600416.

Adding to 3561520224 its reverse (4220251653), we get a palindrome (7781771877).

The spelling of 3561520224 in words is "three billion, five hundred sixty-one million, five hundred twenty thousand, two hundred twenty-four".