225784531508 has 6 divisors (see below), whose sum is σ = 395122930146. Its totient is φ = 112892265752.

The previous prime is 225784531499. The next prime is 225784531519. The reversal of 225784531508 is 805135487522.

It can be written as a sum of positive squares in only one way, i.e., 224952901264 + 831630244 = 474292^2 + 28838^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28223066435 + ... + 28223066442.

It is an arithmetic number, because the mean of its divisors is an integer number (65853821691).

Almost surely, 2^225784531508 is an apocalyptic number.

It is an amenable number.

225784531508 is a deficient number, since it is larger than the sum of its proper divisors (169338398638).

225784531508 is a wasteful number, since it uses less digits than its factorization.

225784531508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56446132881 (or 56446132879 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 225784531508 in words is "two hundred twenty-five billion, seven hundred eighty-four million, five hundred thirty-one thousand, five hundred eight".