245506725 has 36 divisors (see below), whose sum is σ = 441043200. Its totient is φ = 130546080.

The previous prime is 245506717. The next prime is 245506757. The reversal of 245506725 is 527605542.

245506725 is a `hidden beast` number, since 24 + 550 + 67 + 25 = 666.

It is not a de Polignac number, because 245506725 - 2³ = 245506717 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245506725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 83836 + ... + 86714.

It is an arithmetic number, because the mean of its divisors is an integer number (12251200).

Almost surely, 2^245506725 is an apocalyptic number.

245506725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245506725 is a deficient number, since it is larger than the sum of its proper divisors (195536475).

245506725 is a wasteful number, since it uses less digits than its factorization.

245506725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274 (or 3266 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 245506725 is about 15668.6542178963. The cubic root of 245506725 is about 626.1635710861.

The spelling of 245506725 in words is "two hundred forty-five million, five hundred six thousand, seven hundred twenty-five".