2053705645 has 8 divisors (see below), whose sum is σ = 2465083800. Its totient is φ = 1642539840.

The previous prime is 2053705637. The next prime is 2053705651. The reversal of 2053705645 is 5465073502.

2053705645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 74701449 + 1979004196 = 8643^2 + 44486^2 .

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

It is not a de Polignac number, because 2053705645 - 2³ = 2053705637 is a prime.

It is a super-3 number, since 3×2053705645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30970 + ... + 71179.

It is an arithmetic number, because the mean of its divisors is an integer number (308135475).

Almost surely, 2^2053705645 is an apocalyptic number.

It is an amenable number.

2053705645 is a deficient number, since it is larger than the sum of its proper divisors (411378155).

2053705645 is a wasteful number, since it uses less digits than its factorization.

2053705645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106175.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 2053705645 is about 45317.8292176490. The cubic root of 2053705645 is about 1271.0990640903.

The spelling of 2053705645 in words is "two billion, fifty-three million, seven hundred five thousand, six hundred forty-five".