5563520257 has 4 divisors (see below), whose sum is σ = 5563669716. Its totient is φ = 5563370800.

The previous prime is 5563520243. The next prime is 5563520279. The reversal of 5563520257 is 7520253655.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2607532096 + 2955988161 = 51064^2 + 54369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5563520257 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5563520357) 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, 30507 + ... + 109807.

It is an arithmetic number, because the mean of its divisors is an integer number (1390917429).

Almost surely, 2^5563520257 is an apocalyptic number.

It is an amenable number.

5563520257 is a deficient number, since it is larger than the sum of its proper divisors (149459).

5563520257 is an equidigital number, since it uses as much as digits as its factorization.

5563520257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149458.

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 5563520257 is about 74589.0089557436. The cubic root of 5563520257 is about 1771.9435869824.

The spelling of 5563520257 in words is "five billion, five hundred sixty-three million, five hundred twenty thousand, two hundred fifty-seven".