2551226 has 16 divisors (see below), whose sum is σ = 3949440. Its totient is φ = 1235520.

The previous prime is 2551223. The next prime is 2551247. The reversal of 2551226 is 6221552.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10466 + ... + 10706.

It is an arithmetic number, because the mean of its divisors is an integer number (246840).

2^2551226 is an apocalyptic number.

2551226 is a deficient number, since it is larger than the sum of its proper divisors (1398214).

2551226 is a wasteful number, since it uses less digits than its factorization.

2551226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its digits is 1200, while the sum is 23.

The square root of 2551226 is about 1597.2557716283. The cubic root of 2551226 is about 136.6416121697.

Adding to 2551226 its reverse (6221552), we get a palindrome (8772778).

The spelling of 2551226 in words is "two million, five hundred fifty-one thousand, two hundred twenty-six".