2550145 has 8 divisors (see below), whose sum is σ = 3295656. Its totient is φ = 1883136.

The previous prime is 2550139. The next prime is 2550167. The reversal of 2550145 is 5410552.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 2471184 = 281^2 + 1572^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2550145 - 2¹¹ = 2548097 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19552 + ... + 19681.

It is an arithmetic number, because the mean of its divisors is an integer number (411957).

2^2550145 is an apocalyptic number.

It is an amenable number.

2550145 is a deficient number, since it is larger than the sum of its proper divisors (745511).

2550145 is a wasteful number, since it uses less digits than its factorization.

2550145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39251.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2550145 is about 1596.9173428828. The cubic root of 2550145 is about 136.6223102798.

Adding to 2550145 its reverse (5410552), we get a palindrome (7960697).

The spelling of 2550145 in words is "two million, five hundred fifty thousand, one hundred forty-five".