245655925 has 6 divisors (see below), whose sum is σ = 304613378. Its totient is φ = 196524720.

The previous prime is 245655923. The next prime is 245655979. The reversal of 245655925 is 529556542.

It can be written as a sum of positive squares in 3 ways, for example, as 12996 + 245642929 = 114^2 + 15673^2 .

It is not a de Polignac number, because 245655925 - 2¹ = 245655923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245655923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4913094 + ... + 4913143.

Almost surely, 2^245655925 is an apocalyptic number.

245655925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245655925 is a deficient number, since it is larger than the sum of its proper divisors (58957453).

245655925 is an equidigital number, since it uses as much as digits as its factorization.

245655925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826247 (or 9826242 counting only the distinct ones).

The product of its digits is 540000, while the sum is 43.

The square root of 245655925 is about 15673.4145928703. The cubic root of 245655925 is about 626.2903899963.

The spelling of 245655925 in words is "two hundred forty-five million, six hundred fifty-five thousand, nine hundred twenty-five".