2550540321 has 24 divisors (see below), whose sum is σ = 4217952960. Its totient is φ = 1454842656.

The previous prime is 2550540301. The next prime is 2550540331. The reversal of 2550540321 is 1230450552.

It is a happy number.

2550540321 is a `hidden beast` number, since 255 + 0 + 5 + 403 + 2 + 1 = 666.

It is not a de Polignac number, because 2550540321 - 2⁶ = 2550540257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2550540301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486 + ... + 71423.

It is an arithmetic number, because the mean of its divisors is an integer number (175748040).

Almost surely, 2^2550540321 is an apocalyptic number.

2550540321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2550540321 is a deficient number, since it is larger than the sum of its proper divisors (1667412639).

2550540321 is a wasteful number, since it uses less digits than its factorization.

2550540321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72485 (or 72482 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2550540321 is about 50502.8743835438. The cubic root of 2550540321 is about 1366.2936960093.

Adding to 2550540321 its reverse (1230450552), we get a palindrome (3780990873).

The spelling of 2550540321 in words is "two billion, five hundred fifty million, five hundred forty thousand, three hundred twenty-one".