2550400663 has 4 divisors (see below), whose sum is σ = 2550519568. Its totient is φ = 2550281760.

The previous prime is 2550400661. The next prime is 2550400669. The reversal of 2550400663 is 3660040552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2550400663 - 2¹ = 2550400661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550400661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17331 + ... + 73492.

It is an arithmetic number, because the mean of its divisors is an integer number (637629892).

Almost surely, 2^2550400663 is an apocalyptic number.

2550400663 is a deficient number, since it is larger than the sum of its proper divisors (118905).

2550400663 is an equidigital number, since it uses as much as digits as its factorization.

2550400663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118904.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2550400663 is about 50501.4916908402. The cubic root of 2550400663 is about 1366.2687578519.

The spelling of 2550400663 in words is "two billion, five hundred fifty million, four hundred thousand, six hundred sixty-three".