20922250 has 16 divisors (see below), whose sum is σ = 39166920. Its totient is φ = 8368800.

The previous prime is 20922199. The next prime is 20922269. The reversal of 20922250 is 5222902.

It can be written as a sum of positive squares in 4 ways, for example, as 9853321 + 11068929 = 3139^2 + 3327^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41595 + ... + 42094.

Almost surely, 2^20922250 is an apocalyptic number.

20922250 is a deficient number, since it is larger than the sum of its proper divisors (18244670).

20922250 is an equidigital number, since it uses as much as digits as its factorization.

20922250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83706 (or 83696 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20922250 is about 4574.0846078751. The cubic root of 20922250 is about 275.5515102910.

The spelling of 20922250 in words is "twenty million, nine hundred twenty-two thousand, two hundred fifty".