20220550251 has 8 divisors (see below), whose sum is σ = 29411709504. Its totient is φ = 12254878920.

The previous prime is 20220550249. The next prime is 20220550267. The reversal of 20220550251 is 15205502202.

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

It is not a de Polignac number, because 20220550251 - 2¹ = 20220550249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20220550241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306371941 + ... + 306372006.

It is an arithmetic number, because the mean of its divisors is an integer number (3676463688).

Almost surely, 2^20220550251 is an apocalyptic number.

20220550251 is a deficient number, since it is larger than the sum of its proper divisors (9191159253).

20220550251 is a wasteful number, since it uses less digits than its factorization.

20220550251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612743961.

The product of its (nonzero) digits is 2000, while the sum is 24.

The spelling of 20220550251 in words is "twenty billion, two hundred twenty million, five hundred fifty thousand, two hundred fifty-one".