2550642 has 8 divisors (see below), whose sum is σ = 5101296. Its totient is φ = 850212.

The previous prime is 2550641. The next prime is 2550659. The reversal of 2550642 is 2460552.

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

2550642 is an admirable number.

It is a super-2 number, since 2×2550642² = 13011549224328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2550641) by changing a digit.

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, 212548 + ... + 212559.

It is an arithmetic number, because the mean of its divisors is an integer number (637662).

2^2550642 is an apocalyptic number.

2550642 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.

2550642 is a wasteful number, since it uses less digits than its factorization.

2550642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425112.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2550642 is about 1597.0729476139. The cubic root of 2550642 is about 136.6311851839.

The spelling of 2550642 in words is "two million, five hundred fifty thousand, six hundred forty-two".