253065515 has 8 divisors (see below), whose sum is σ = 308657328. Its totient is φ = 199133280.

The previous prime is 253065443. The next prime is 253065559. The reversal of 253065515 is 515560352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253065515 - 2¹⁰ = 253064491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414557 + ... + 415166.

It is an arithmetic number, because the mean of its divisors is an integer number (38582166).

Almost surely, 2^253065515 is an apocalyptic number.

253065515 is a deficient number, since it is larger than the sum of its proper divisors (55591813).

253065515 is an equidigital number, since it uses as much as digits as its factorization.

253065515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829789.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 253065515 is about 15908.0330336594. The cubic root of 253065515 is about 632.5249429045.

The spelling of 253065515 in words is "two hundred fifty-three million, sixty-five thousand, five hundred fifteen".