2059654921 has 4 divisors (see below), whose sum is σ = 2071988352. Its totient is φ = 2047321492.

The previous prime is 2059654841. The next prime is 2059654957. The reversal of 2059654921 is 1294569502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2059654921 - 2⁹ = 2059654409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2059654621) 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 3 ways as a sum of consecutive naturals, for example, 6166465 + ... + 6166798.

It is an arithmetic number, because the mean of its divisors is an integer number (517997088).

Almost surely, 2^2059654921 is an apocalyptic number.

It is an amenable number.

2059654921 is a deficient number, since it is larger than the sum of its proper divisors (12333431).

2059654921 is a wasteful number, since it uses less digits than its factorization.

2059654921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12333430.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 2059654921 is about 45383.4212130377. The cubic root of 2059654921 is about 1272.3252749962.

The spelling of 2059654921 in words is "two billion, fifty-nine million, six hundred fifty-four thousand, nine hundred twenty-one".