2081657503 has 8 divisors (see below), whose sum is σ = 2098074176. Its totient is φ = 2065305600.

The previous prime is 2081657483. The next prime is 2081657507. The reversal of 2081657503 is 3057561802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081657503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081657507) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 49375 + ... + 81247.

It is an arithmetic number, because the mean of its divisors is an integer number (262259272).

Almost surely, 2^2081657503 is an apocalyptic number.

2081657503 is a deficient number, since it is larger than the sum of its proper divisors (16416673).

2081657503 is a wasteful number, since it uses less digits than its factorization.

2081657503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32385.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2081657503 is about 45625.1849640086. The cubic root of 2081657503 is about 1276.8398409005.

The spelling of 2081657503 in words is "two billion, eighty-one million, six hundred fifty-seven thousand, five hundred three".