5281564525 has 18 divisors (see below), whose sum is σ = 6660081726. Its totient is φ = 4153752000.

The previous prime is 5281564523. The next prime is 5281564531. The reversal of 5281564525 is 5254651825.

It can be written as a sum of positive squares in 9 ways, for example, as 5279766244 + 1798281 = 72662^2 + 1341^2 .

It is not a de Polignac number, because 5281564525 - 2¹ = 5281564523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281564523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2837095 + ... + 2838955.

Almost surely, 2^5281564525 is an apocalyptic number.

It is an amenable number.

5281564525 is a deficient number, since it is larger than the sum of its proper divisors (1378517201).

5281564525 is an frugal number, since it uses more digits than its factorization.

5281564525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793 (or 1927 counting only the distinct ones).

The product of its digits is 480000, while the sum is 43.

The square root of 5281564525 is about 72674.3732343114. The cubic root of 5281564525 is about 1741.4895120846.

The spelling of 5281564525 in words is "five billion, two hundred eighty-one million, five hundred sixty-four thousand, five hundred twenty-five".