245801125 has 8 divisors (see below), whose sum is σ = 306759960. Its totient is φ = 196640800.

The previous prime is 245801111. The next prime is 245801137. The reversal of 245801125 is 521108542.

It can be written as a sum of positive squares in 4 ways, for example, as 76983076 + 168818049 = 8774^2 + 12993^2 .

It is not a de Polignac number, because 245801125 - 2¹¹ = 245799077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245801093 and 245801102.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 983080 + ... + 983329.

It is an arithmetic number, because the mean of its divisors is an integer number (38344995).

Almost surely, 2^245801125 is an apocalyptic number.

245801125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245801125 is a deficient number, since it is larger than the sum of its proper divisors (60958835).

245801125 is an equidigital number, since it uses as much as digits as its factorization.

245801125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966424 (or 1966414 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 245801125 is about 15678.0459560495. The cubic root of 245801125 is about 626.4137596426.

Adding to 245801125 its reverse (521108542), we get a palindrome (766909667).

The spelling of 245801125 in words is "two hundred forty-five million, eight hundred one thousand, one hundred twenty-five".