245643625 has 16 divisors (see below), whose sum is σ = 324599184. Its totient is φ = 184953600.

The previous prime is 245643589. The next prime is 245643631. The reversal of 245643625 is 526346542.

245643625 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 8 ways, for example, as 4897369 + 240746256 = 2213^2 + 15516^2 .

It is not a de Polignac number, because 245643625 - 2⁹ = 245643113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55674 + ... + 59923.

It is an arithmetic number, because the mean of its divisors is an integer number (20287449).

Almost surely, 2^245643625 is an apocalyptic number.

245643625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245643625 is a deficient number, since it is larger than the sum of its proper divisors (78955559).

245643625 is a wasteful number, since it uses less digits than its factorization.

245643625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115629 (or 115619 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 245643625 is about 15673.0222037742. The cubic root of 245643625 is about 626.2799370286.

The spelling of 245643625 in words is "two hundred forty-five million, six hundred forty-three thousand, six hundred twenty-five".