245650065 has 32 divisors (see below), whose sum is σ = 406498176. Its totient is φ = 126589440.

The previous prime is 245650061. The next prime is 245650081. The reversal of 245650065 is 560056542.

It is a happy number.

It is not a de Polignac number, because 245650065 - 2² = 245650061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245650061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63939 + ... + 67671.

It is an arithmetic number, because the mean of its divisors is an integer number (12703068).

Almost surely, 2^245650065 is an apocalyptic number.

It is an amenable number.

245650065 is a deficient number, since it is larger than the sum of its proper divisors (160848111).

245650065 is a wasteful number, since it uses less digits than its factorization.

245650065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 245650065 is about 15673.2276509977. The cubic root of 245650065 is about 626.2854100081.

The spelling of 245650065 in words is "two hundred forty-five million, six hundred fifty thousand, sixty-five".