245581265 has 8 divisors (see below), whose sum is σ = 294831528. Its totient is φ = 196375680.

The previous prime is 245581249. The next prime is 245581307. The reversal of 245581265 is 562185542.

245581265 is digitally balanced in base 2, 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 3094081 + 242487184 = 1759^2 + 15572^2 .

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

It is not a de Polignac number, because 245581265 - 2⁴ = 245581249 is a prime.

It is a Duffinian 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, 2435 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (36853941).

Almost surely, 2^245581265 is an apocalyptic number.

It is an amenable number.

245581265 is a deficient number, since it is larger than the sum of its proper divisors (49250263).

245581265 is a wasteful number, since it uses less digits than its factorization.

245581265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22339.

The product of its digits is 96000, while the sum is 38.

The square root of 245581265 is about 15671.0326717801. The cubic root of 245581265 is about 626.2269359623.

The spelling of 245581265 in words is "two hundred forty-five million, five hundred eighty-one thousand, two hundred sixty-five".