2651515 has 4 divisors (see below), whose sum is σ = 3181824. Its totient is φ = 2121208.

The previous prime is 2651513. The next prime is 2651549. The reversal of 2651515 is 5151562.

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 2651515 - 2¹ = 2651513 is a prime.

It is a Duffinian number.

2651515 is a modest number, since divided by 1515 gives 265 as remainder.

2651515 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2651515.

It is not an unprimeable number, because it can be changed into a prime (2651513) 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 3 ways as a sum of consecutive naturals, for example, 265147 + ... + 265156.

It is an arithmetic number, because the mean of its divisors is an integer number (795456).

2^2651515 is an apocalyptic number.

2651515 is a deficient number, since it is larger than the sum of its proper divisors (530309).

2651515 is an equidigital number, since it uses as much as digits as its factorization.

2651515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530308.

The product of its digits is 1500, while the sum is 25.

The square root of 2651515 is about 1628.3473216731. The cubic root of 2651515 is about 138.4091163930.

The spelling of 2651515 in words is "two million, six hundred fifty-one thousand, five hundred fifteen".