245760005 has 4 divisors (see below), whose sum is σ = 294912012. Its totient is φ = 196608000.

The previous prime is 245760001. The next prime is 245760017. The reversal of 245760005 is 500067542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58644964 + 187115041 = 7658^2 + 13679^2 .

It is not a de Polignac number, because 245760005 - 2² = 245760001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245760005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245760001) 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, 24575996 + ... + 24576005.

It is an arithmetic number, because the mean of its divisors is an integer number (73728003).

Almost surely, 2^245760005 is an apocalyptic number.

It is an amenable number.

245760005 is a deficient number, since it is larger than the sum of its proper divisors (49152007).

245760005 is an equidigital number, since it uses as much as digits as its factorization.

245760005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49152006.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 245760005 is about 15676.7345132843. The cubic root of 245760005 is about 626.3788268349.

The spelling of 245760005 in words is "two hundred forty-five million, seven hundred sixty thousand, five".