5243557505 has 4 divisors (see below), whose sum is σ = 6292269012. Its totient is φ = 4194846000.

The previous prime is 5243557493. The next prime is 5243557519. The reversal of 5243557505 is 5057553425.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1052807809 + 4190749696 = 32447^2 + 64736^2 .

It is not a de Polignac number, because 5243557505 - 2⁶ = 5243557441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524355746 + ... + 524355755.

It is an arithmetic number, because the mean of its divisors is an integer number (1573067253).

Almost surely, 2^5243557505 is an apocalyptic number.

It is an amenable number.

5243557505 is a deficient number, since it is larger than the sum of its proper divisors (1048711507).

5243557505 is a wasteful number, since it uses less digits than its factorization.

5243557505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048711506.

The product of its (nonzero) digits is 525000, while the sum is 41.

The square root of 5243557505 is about 72412.4126445183. The cubic root of 5243557505 is about 1737.3021017813.

The spelling of 5243557505 in words is "five billion, two hundred forty-three million, five hundred fifty-seven thousand, five hundred five".