503696925 has 18 divisors (see below), whose sum is σ = 902177562. Its totient is φ = 268638240.

The previous prime is 503696923. The next prime is 503696929. The reversal of 503696925 is 529696305.

503696925 is a `hidden beast` number, since 503 + 69 + 69 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 150332121 + 353364804 = 12261^2 + 18798^2 .

It is not a de Polignac number, because 503696925 - 2¹ = 503696923 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503696923) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1119102 + ... + 1119551.

Almost surely, 2^503696925 is an apocalyptic number.

It is an amenable number.

503696925 is a deficient number, since it is larger than the sum of its proper divisors (398480637).

503696925 is a wasteful number, since it uses less digits than its factorization.

503696925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238669 (or 2238661 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The square root of 503696925 is about 22443.1932888348. The cubic root of 503696925 is about 795.6518920326.

The spelling of 503696925 in words is "five hundred three million, six hundred ninety-six thousand, nine hundred twenty-five".