82503669825 has 72 divisors (see below), whose sum is σ = 153406341088. Its totient is φ = 43956017280.

The previous prime is 82503669823. The next prime is 82503669827. The reversal of 82503669825 is 52896630528.

82503669825 is a `hidden beast` number, since 8 + 250 + 366 + 9 + 8 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (82503669823) and next prime (82503669827).

It is not a de Polignac number, because 82503669825 - 2¹ = 82503669823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82503669821) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6268902 + ... + 6282048.

Almost surely, 2^82503669825 is an apocalyptic number.

It is an amenable number.

82503669825 is a deficient number, since it is larger than the sum of its proper divisors (70902671263).

82503669825 is a wasteful number, since it uses less digits than its factorization.

82503669825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205 (or 14188 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 82503669825 in words is "eighty-two billion, five hundred three million, six hundred sixty-nine thousand, eight hundred twenty-five".