2551250 has 40 divisors (see below), whose sum is σ = 5182716. Its totient is φ = 936000.

The previous prime is 2551249. The next prime is 2551273. The reversal of 2551250 is 521552.

It can be written as a sum of positive squares in 10 ways, for example, as 779689 + 1771561 = 883^2 + 1331^2 .

It is a Curzon 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 19 ways as a sum of consecutive naturals, for example, 16172 + ... + 16328.

2^2551250 is an apocalyptic number.

2551250 is an abundant number, since it is smaller than the sum of its proper divisors (2631466).

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

2551250 is a wasteful number, since it uses less digits than its factorization.

2551250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 2551250 is about 1597.2632844963. The cubic root of 2551250 is about 136.6420406419.

It can be divided in two parts, 2 and 551250, that multiplied together give a square (1102500 = 1050²).

The spelling of 2551250 in words is "two million, five hundred fifty-one thousand, two hundred fifty".