2551746 has 8 divisors (see below), whose sum is σ = 5103504. Its totient is φ = 850580.

The previous prime is 2551733. The next prime is 2551793. The reversal of 2551746 is 6471552.

It is a sphenic number, since it is the product of 3 distinct primes.

2551746 is an admirable number.

It is a super-2 number, since 2×2551746² = 13022815297032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212640 + ... + 212651.

It is an arithmetic number, because the mean of its divisors is an integer number (637938).

2^2551746 is an apocalyptic number.

2551746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2551746 is a wasteful number, since it uses less digits than its factorization.

2551746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425296.

The product of its digits is 8400, while the sum is 30.

The square root of 2551746 is about 1597.4185425242. The cubic root of 2551746 is about 136.6508951329.

The spelling of 2551746 in words is "two million, five hundred fifty-one thousand, seven hundred forty-six".