245005385 has 4 divisors (see below), whose sum is σ = 294006468. Its totient is φ = 196004304.

The previous prime is 245005373. The next prime is 245005421. The reversal of 245005385 is 583500542.

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 38105929 + 206899456 = 6173^2 + 14384^2 .

It is a cyclic number.

It is not a de Polignac number, because 245005385 - 2²⁰ = 243956809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24500534 + ... + 24500543.

It is an arithmetic number, because the mean of its divisors is an integer number (73501617).

Almost surely, 2^245005385 is an apocalyptic number.

It is an amenable number.

245005385 is a deficient number, since it is larger than the sum of its proper divisors (49001083).

245005385 is an equidigital number, since it uses as much as digits as its factorization.

245005385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49001082.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 245005385 is about 15652.6478590684. The cubic root of 245005385 is about 625.7370589821.

The spelling of 245005385 in words is "two hundred forty-five million, five thousand, three hundred eighty-five".