5265560561 has 4 divisors (see below), whose sum is σ = 5267802624. Its totient is φ = 5263318500.

The previous prime is 5265560549. The next prime is 5265560581. The reversal of 5265560561 is 1650655625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5265560561 - 2¹⁸ = 5265298417 is a prime.

It is a super-2 number, since 2×5265560561² = 55452256043117269442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5265560581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117505 + ... + 1122206.

It is an arithmetic number, because the mean of its divisors is an integer number (1316950656).

Almost surely, 2^5265560561 is an apocalyptic number.

It is an amenable number.

5265560561 is a deficient number, since it is larger than the sum of its proper divisors (2242063).

5265560561 is a wasteful number, since it uses less digits than its factorization.

5265560561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242062.

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 5265560561 is about 72564.1823560357. The cubic root of 5265560561 is about 1739.7287374945.

The spelling of 5265560561 in words is "five billion, two hundred sixty-five million, five hundred sixty thousand, five hundred sixty-one".