245517125 has 16 divisors (see below), whose sum is σ = 350178816. Its totient is φ = 168354000.

The previous prime is 245517109. The next prime is 245517127. The reversal of 245517125 is 521715542.

It is not a de Polignac number, because 245517125 - 2⁴ = 245517109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 245517091 and 245517100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245517127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 139421 + ... + 141170.

It is an arithmetic number, because the mean of its divisors is an integer number (21886176).

Almost surely, 2^245517125 is an apocalyptic number.

245517125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245517125 is a deficient number, since it is larger than the sum of its proper divisors (104661691).

245517125 is an equidigital number, since it uses as much as digits as its factorization.

245517125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280613 (or 280603 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 245517125 is about 15668.9860871723. The cubic root of 245517125 is about 626.1724126758.

The spelling of 245517125 in words is "two hundred forty-five million, five hundred seventeen thousand, one hundred twenty-five".