2057312505 has 8 divisors (see below), whose sum is σ = 3291700032. Its totient is φ = 1097233328.

The previous prime is 2057312447. The next prime is 2057312539. The reversal of 2057312505 is 5052137502.

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 2057312505 - 2⁷ = 2057312377 is a prime.

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, 68577069 + ... + 68577098.

It is an arithmetic number, because the mean of its divisors is an integer number (411462504).

Almost surely, 2^2057312505 is an apocalyptic number.

It is an amenable number.

2057312505 is a deficient number, since it is larger than the sum of its proper divisors (1234387527).

2057312505 is a wasteful number, since it uses less digits than its factorization.

2057312505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137154175.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 2057312505 is about 45357.6069143865. The cubic root of 2057312505 is about 1271.8427596019.

The spelling of 2057312505 in words is "two billion, fifty-seven million, three hundred twelve thousand, five hundred five".