2550224821 has 4 divisors (see below), whose sum is σ = 2684447200. Its totient is φ = 2416002444.

The previous prime is 2550224777. The next prime is 2550224857. The reversal of 2550224821 is 1284220552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2550224821 - 2⁹ = 2550224309 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 (2550224861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67111161 + ... + 67111198.

It is an arithmetic number, because the mean of its divisors is an integer number (671111800).

Almost surely, 2^2550224821 is an apocalyptic number.

It is an amenable number.

2550224821 is a deficient number, since it is larger than the sum of its proper divisors (134222379).

2550224821 is a wasteful number, since it uses less digits than its factorization.

2550224821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134222378.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 2550224821 is about 50499.7507023550. The cubic root of 2550224821 is about 1366.2373571709.

The spelling of 2550224821 in words is "two billion, five hundred fifty million, two hundred twenty-four thousand, eight hundred twenty-one".