2550404 has 6 divisors (see below), whose sum is σ = 4463214. Its totient is φ = 1275200.

The previous prime is 2550403. The next prime is 2550407. The reversal of 2550404 is 4040552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 722500 = 1352^2 + 850^2 .

It is not an unprimeable number, because it can be changed into a prime (2550403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318797 + ... + 318804.

It is an arithmetic number, because the mean of its divisors is an integer number (743869).

2^2550404 is an apocalyptic number.

It is an amenable number.

2550404 is a deficient number, since it is larger than the sum of its proper divisors (1912810).

2550404 is a wasteful number, since it uses less digits than its factorization.

2550404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637605 (or 637603 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2550404 is about 1596.9984345640. The cubic root of 2550404 is about 136.6269353737.

Adding to 2550404 its reverse (4040552), we get a palindrome (6590956).

The spelling of 2550404 in words is "two million, five hundred fifty thousand, four hundred four".