2521282 has 4 divisors (see below), whose sum is σ = 3781926. Its totient is φ = 1260640.

The previous prime is 2521273. The next prime is 2521297. The reversal of 2521282 is 2821252.

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

It can be written as a sum of positive squares in only one way, i.e., 1437601 + 1083681 = 1199^2 + 1041^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630319 + ... + 630322.

2^2521282 is an apocalyptic number.

2521282 is a deficient number, since it is larger than the sum of its proper divisors (1260644).

2521282 is a wasteful number, since it uses less digits than its factorization.

2521282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260643.

The product of its digits is 640, while the sum is 22.

The square root of 2521282 is about 1587.8545273418. The cubic root of 2521282 is about 136.1049147194.

It can be divided in two parts, 2 and 521282, that added together give a square (521284 = 722²).

The spelling of 2521282 in words is "two million, five hundred twenty-one thousand, two hundred eighty-two".