5025564521 has 4 divisors (see below), whose sum is σ = 5038484100. Its totient is φ = 5012644944.

The previous prime is 5025564517. The next prime is 5025564527. The reversal of 5025564521 is 1254655205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1254655205 = 5 ⋅250931041.

It can be written as a sum of positive squares in 2 ways, for example, as 1263091600 + 3762472921 = 35540^2 + 61339^2 .

It is a cyclic number.

It is not a de Polignac number, because 5025564521 - 2² = 5025564517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5025564527) 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, 6459206 + ... + 6459983.

It is an arithmetic number, because the mean of its divisors is an integer number (1259621025).

Almost surely, 2^5025564521 is an apocalyptic number.

It is an amenable number.

5025564521 is a deficient number, since it is larger than the sum of its proper divisors (12919579).

5025564521 is a wasteful number, since it uses less digits than its factorization.

5025564521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12919578.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 5025564521 is about 70891.2161060875. The cubic root of 5025564521 is about 1712.8853082670.

The spelling of 5025564521 in words is "five billion, twenty-five million, five hundred sixty-four thousand, five hundred twenty-one".