5561501225 has 36 divisors (see below), whose sum is σ = 8093375964. Its totient is φ = 3779758080.

The previous prime is 5561501221. The next prime is 5561501251. The reversal of 5561501225 is 5221051655.

It can be written as a sum of positive squares in 6 ways, for example, as 209554576 + 5351946649 = 14476^2 + 73157^2 .

It is not a de Polignac number, because 5561501225 - 2² = 5561501221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5561501191 and 5561501200.

It is not an unprimeable number, because it can be changed into a prime (5561501221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118337 + ... + 158513.

It is an arithmetic number, because the mean of its divisors is an integer number (224815999).

Almost surely, 2^5561501225 is an apocalyptic number.

It is an amenable number.

5561501225 is a deficient number, since it is larger than the sum of its proper divisors (2531874739).

5561501225 is a wasteful number, since it uses less digits than its factorization.

5561501225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40314 (or 40302 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 5561501225 is about 74575.4733474753. The cubic root of 5561501225 is about 1771.7292117006.

The spelling of 5561501225 in words is "five billion, five hundred sixty-one million, five hundred one thousand, two hundred twenty-five".