2515289 has 4 divisors (see below), whose sum is σ = 2874624. Its totient is φ = 2155956.

The previous prime is 2515283. The next prime is 2515291. The reversal of 2515289 is 9825152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2515289 - 2⁴ = 2515273 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2515283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179657 + ... + 179670.

It is an arithmetic number, because the mean of its divisors is an integer number (718656).

2^2515289 is an apocalyptic number.

It is an amenable number.

2515289 is a deficient number, since it is larger than the sum of its proper divisors (359335).

2515289 is an equidigital number, since it uses as much as digits as its factorization.

2515289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359334.

The product of its digits is 7200, while the sum is 32.

The square root of 2515289 is about 1585.9662669805. The cubic root of 2515289 is about 135.9969902736.

The spelling of 2515289 in words is "two million, five hundred fifteen thousand, two hundred eighty-nine".