245925515 has 16 divisors (see below), whose sum is σ = 323398656. Its totient is φ = 178044000.

The previous prime is 245925497. The next prime is 245925517. The reversal of 245925515 is 515529542.

It is not a de Polignac number, because 245925515 - 2⁸ = 245925259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245925517) 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, 2240 + ... + 22290.

It is an arithmetic number, because the mean of its divisors is an integer number (20212416).

Almost surely, 2^245925515 is an apocalyptic number.

245925515 is a deficient number, since it is larger than the sum of its proper divisors (77473141).

245925515 is a wasteful number, since it uses less digits than its factorization.

245925515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290.

The product of its digits is 90000, while the sum is 38.

The square root of 245925515 is about 15682.0124665172. The cubic root of 245925515 is about 626.5194093723.

The spelling of 245925515 in words is "two hundred forty-five million, nine hundred twenty-five thousand, five hundred fifteen".