2551106 has 4 divisors (see below), whose sum is σ = 3826662. Its totient is φ = 1275552.

The previous prime is 2551103. The next prime is 2551123. The reversal of 2551106 is 6011552.

2551106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1934881 + 616225 = 1391^2 + 785^2 .

It is not an unprimeable number, because it can be changed into a prime (2551103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637775 + ... + 637778.

2^2551106 is an apocalyptic number.

2551106 is a deficient number, since it is larger than the sum of its proper divisors (1275556).

2551106 is a wasteful number, since it uses less digits than its factorization.

2551106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275555.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2551106 is about 1597.2182067582. The cubic root of 2551106 is about 136.6394697682.

Adding to 2551106 its reverse (6011552), we get a palindrome (8562658).

The spelling of 2551106 in words is "two million, five hundred fifty-one thousand, one hundred six".