2053187705 has 8 divisors (see below), whose sum is σ = 2467033800. Its totient is φ = 1640411136.

The previous prime is 2053187687. The next prime is 2053187729. The reversal of 2053187705 is 5077813502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 682411129 + 1370776576 = 26123^2 + 37024^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2053187705 - 2¹⁴ = 2053171321 is a prime.

It is a Curzon 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, 263150 + ... + 270839.

It is an arithmetic number, because the mean of its divisors is an integer number (308379225).

Almost surely, 2^2053187705 is an apocalyptic number.

It is an amenable number.

2053187705 is a deficient number, since it is larger than the sum of its proper divisors (413846095).

2053187705 is an equidigital number, since it uses as much as digits as its factorization.

2053187705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534763.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 2053187705 is about 45312.1143293932. The cubic root of 2053187705 is about 1270.9921989863.

The spelling of 2053187705 in words is "two billion, fifty-three million, one hundred eighty-seven thousand, seven hundred five".