2551066 has 16 divisors (see below), whose sum is σ = 4467456. Its totient is φ = 1069776.

The previous prime is 2551063. The next prime is 2551069. The reversal of 2551066 is 6601552.

It is an interprime number because it is at equal distance from previous prime (2551063) and next prime (2551069).

It is a self number, because there is not a number n which added to its sum of digits gives 2551066.

It is not an unprimeable number, because it can be changed into a prime (2551063) 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, 1281 + ... + 2596.

It is an arithmetic number, because the mean of its divisors is an integer number (279216).

2^2551066 is an apocalyptic number.

2551066 is a deficient number, since it is larger than the sum of its proper divisors (1916390).

2551066 is a wasteful number, since it uses less digits than its factorization.

2551066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2551066 is about 1597.2056849385. The cubic root of 2551066 is about 136.6387556195.

The spelling of 2551066 in words is "two million, five hundred fifty-one thousand, sixty-six".