2511266 has 4 divisors (see below), whose sum is σ = 3766902. Its totient is φ = 1255632.

The previous prime is 2511259. The next prime is 2511269. The reversal of 2511266 is 6621152.

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., 2042041 + 469225 = 1429^2 + 685^2 .

It is not an unprimeable number, because it can be changed into a prime (2511269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627815 + ... + 627818.

2^2511266 is an apocalyptic number.

2511266 is a deficient number, since it is larger than the sum of its proper divisors (1255636).

2511266 is a wasteful number, since it uses less digits than its factorization.

2511266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255635.

The product of its digits is 720, while the sum is 23.

The square root of 2511266 is about 1584.6974474643. The cubic root of 2511266 is about 135.9244462121.

The spelling of 2511266 in words is "two million, five hundred eleven thousand, two hundred sixty-six".