2551888 has 20 divisors (see below), whose sum is σ = 4969300. Its totient is φ = 1269504.

The previous prime is 2551883. The next prime is 2551903. The reversal of 2551888 is 8881552.

It can be written as a sum of positive squares in 2 ways, for example, as 2050624 + 501264 = 1432^2 + 708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5356 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (248465).

2^2551888 is an apocalyptic number.

It is an amenable number.

2551888 is a deficient number, since it is larger than the sum of its proper divisors (2417412).

2551888 is a wasteful number, since it uses less digits than its factorization.

2551888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 808 counting only the distinct ones).

The product of its digits is 25600, while the sum is 37.

The square root of 2551888 is about 1597.4629886166. The cubic root of 2551888 is about 136.6534298767.

The spelling of 2551888 in words is "two million, five hundred fifty-one thousand, eight hundred eighty-eight".