2091654503 has 4 divisors (see below), whose sum is σ = 2091806760. Its totient is φ = 2091502248.

The previous prime is 2091654497. The next prime is 2091654529. The reversal of 2091654503 is 3054561902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2091654503 - 2¹⁴ = 2091638119 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 (2091654703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53225 + ... + 83762.

It is an arithmetic number, because the mean of its divisors is an integer number (522951690).

Almost surely, 2^2091654503 is an apocalyptic number.

2091654503 is a deficient number, since it is larger than the sum of its proper divisors (152257).

2091654503 is a wasteful number, since it uses less digits than its factorization.

2091654503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152256.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2091654503 is about 45734.6094659176. The cubic root of 2091654503 is about 1278.8805526243.

The spelling of 2091654503 in words is "two billion, ninety-one million, six hundred fifty-four thousand, five hundred three".