503564454625 has 32 divisors (see below), whose sum is σ = 657611843616. Its totient is φ = 384567955200.

The previous prime is 503564454623. The next prime is 503564454649. The reversal of 503564454625 is 526454465305.

It can be written as a sum of positive squares in 16 ways, for example, as 172106330449 + 331458124176 = 414857^2 + 575724^2 .

It is not a de Polignac number, because 503564454625 - 2¹ = 503564454623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503564454623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 782034 + ... + 1272283.

It is an arithmetic number, because the mean of its divisors is an integer number (20550370113).

Almost surely, 2^503564454625 is an apocalyptic number.

It is an amenable number.

503564454625 is a deficient number, since it is larger than the sum of its proper divisors (154047388991).

503564454625 is a wasteful number, since it uses less digits than its factorization.

503564454625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054422 (or 2054412 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 49.

The spelling of 503564454625 in words is "five hundred three billion, five hundred sixty-four million, four hundred fifty-four thousand, six hundred twenty-five".