245663933 has 4 divisors (see below), whose sum is σ = 253588608. Its totient is φ = 237739260.

The previous prime is 245663903. The next prime is 245663947. The reversal of 245663933 is 339366542.

245663933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 339366542 = 2 ⋅169683271.

It is a cyclic number.

It is not a de Polignac number, because 245663933 - 2¹⁰ = 245662909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245663903) 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, 3962291 + ... + 3962352.

It is an arithmetic number, because the mean of its divisors is an integer number (63397152).

Almost surely, 2^245663933 is an apocalyptic number.

It is an amenable number.

245663933 is a deficient number, since it is larger than the sum of its proper divisors (7924675).

245663933 is an equidigital number, since it uses as much as digits as its factorization.

245663933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924674.

The product of its digits is 349920, while the sum is 41.

The square root of 245663933 is about 15673.6700552232. The cubic root of 245663933 is about 626.2971952857.

The spelling of 245663933 in words is "two hundred forty-five million, six hundred sixty-three thousand, nine hundred thirty-three".