245643025 has 12 divisors (see below), whose sum is σ = 306619264. Its totient is φ = 195210000.

The previous prime is 245643011. The next prime is 245643061. The reversal of 245643025 is 520346542.

It is not a de Polignac number, because 245643025 - 2⁵ = 245642993 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28761 + ... + 36310.

Almost surely, 2^245643025 is an apocalyptic number.

245643025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245643025 is a deficient number, since it is larger than the sum of its proper divisors (60976239).

245643025 is a wasteful number, since it uses less digits than its factorization.

245643025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65232 (or 65227 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 245643025 is about 15673.0030625914. The cubic root of 245643025 is about 626.2794271188.

Adding to 245643025 its reverse (520346542), we get a palindrome (765989567).

The spelling of 245643025 in words is "two hundred forty-five million, six hundred forty-three thousand, twenty-five".