2487505 has 4 divisors (see below), whose sum is σ = 2985012. Its totient is φ = 1990000.

The previous prime is 2487497. The next prime is 2487517. The reversal of 2487505 is 5057842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 859329 + 1628176 = 927^2 + 1276^2 .

It is not a de Polignac number, because 2487505 - 2³ = 2487497 is a prime.

It is a super-2 number, since 2×2487505² = 12375362250050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248746 + ... + 248755.

It is an arithmetic number, because the mean of its divisors is an integer number (746253).

2^2487505 is an apocalyptic number.

It is an amenable number.

2487505 is a deficient number, since it is larger than the sum of its proper divisors (497507).

2487505 is an equidigital number, since it uses as much as digits as its factorization.

2487505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497506.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 2487505 is about 1577.1826146645. The cubic root of 2487505 is about 135.4943920919.

It can be divided in two parts, 2487 and 505, that added together give a palindrome (2992).

The spelling of 2487505 in words is "two million, four hundred eighty-seven thousand, five hundred five".