2551386 has 16 divisors (see below), whose sum is σ = 5187168. Its totient is φ = 836400.

The previous prime is 2551369. The next prime is 2551397. The reversal of 2551386 is 6831552.

It is an Ulam number.

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 7 ways as a sum of consecutive naturals, for example, 3120 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (324198).

2^2551386 is an apocalyptic number.

2551386 is an abundant number, since it is smaller than the sum of its proper divisors (2635782).

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

2551386 is a wasteful number, since it uses less digits than its factorization.

2551386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037.

The product of its digits is 7200, while the sum is 30.

The square root of 2551386 is about 1597.3058567475. The cubic root of 2551386 is about 136.6444686004.

The spelling of 2551386 in words is "two million, five hundred fifty-one thousand, three hundred eighty-six".