2651266 has 4 divisors (see below), whose sum is σ = 3976902. Its totient is φ = 1325632.

The previous prime is 2651239. The next prime is 2651273. The reversal of 2651266 is 6621562.

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., 2019241 + 632025 = 1421^2 + 795^2 .

It is a super-2 number, since 2×2651266² = 14058422805512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662815 + ... + 662818.

2^2651266 is an apocalyptic number.

2651266 is a deficient number, since it is larger than the sum of its proper divisors (1325636).

2651266 is a wasteful number, since it uses less digits than its factorization.

2651266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325635.

The product of its digits is 4320, while the sum is 28.

The square root of 2651266 is about 1628.2708619883. The cubic root of 2651266 is about 138.4047836564.

The spelling of 2651266 in words is "two million, six hundred fifty-one thousand, two hundred sixty-six".