653680503 has 64 divisors (see below), whose sum is σ = 1205376000. Its totient is φ = 341615232.

The previous prime is 653680499. The next prime is 653680513. The reversal of 653680503 is 305086356.

It is not a de Polignac number, because 653680503 - 2² = 653680499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653680513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101001 + ... + 107277.

It is an arithmetic number, because the mean of its divisors is an integer number (18834000).

Almost surely, 2^653680503 is an apocalyptic number.

653680503 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

653680503 is a deficient number, since it is larger than the sum of its proper divisors (551695497).

653680503 is a wasteful number, since it uses less digits than its factorization.

653680503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341 (or 6335 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 653680503 is about 25567.1762813182. The cubic root of 653680503 is about 867.8710012201.

The spelling of 653680503 in words is "six hundred fifty-three million, six hundred eighty thousand, five hundred three".