2630256515 has 8 divisors (see below), whose sum is σ = 3156788688. Its totient is φ = 2103884640.

The previous prime is 2630256511. The next prime is 2630256523. The reversal of 2630256515 is 5156520362.

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

It is not a de Polignac number, because 2630256515 - 2² = 2630256511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2630256511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401 + ... + 72530.

It is an arithmetic number, because the mean of its divisors is an integer number (394598586).

Almost surely, 2^2630256515 is an apocalyptic number.

2630256515 is a deficient number, since it is larger than the sum of its proper divisors (526532173).

2630256515 is an equidigital number, since it uses as much as digits as its factorization.

2630256515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80149.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 2630256515 is about 51286.0265082020. The cubic root of 2630256515 is about 1380.3822568799.

Adding to 2630256515 its reverse (5156520362), we get a palindrome (7786776877).

The spelling of 2630256515 in words is "two billion, six hundred thirty million, two hundred fifty-six thousand, five hundred fifteen".