260823515 has 4 divisors (see below), whose sum is σ = 312988224. Its totient is φ = 208658808.

The previous prime is 260823499. The next prime is 260823527. The reversal of 260823515 is 515328062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260823515 - 2⁴ = 260823499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26082347 + ... + 26082356.

It is an arithmetic number, because the mean of its divisors is an integer number (78247056).

Almost surely, 2^260823515 is an apocalyptic number.

260823515 is a deficient number, since it is larger than the sum of its proper divisors (52164709).

260823515 is an equidigital number, since it uses as much as digits as its factorization.

260823515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52164708.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 260823515 is about 16150.0314241180. The cubic root of 260823515 is about 638.9235771238.

The spelling of 260823515 in words is "two hundred sixty million, eight hundred twenty-three thousand, five hundred fifteen".