20796225 has 24 divisors (see below), whose sum is σ = 35226912. Its totient is φ = 10819200.

The previous prime is 20796221. The next prime is 20796233. The reversal of 20796225 is 52269702.

20796225 = 185² + 186² + ... + 409².

It is a happy number.

It is not a de Polignac number, because 20796225 - 2² = 20796221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20796221) 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, 307 + ... + 6456.

It is an arithmetic number, because the mean of its divisors is an integer number (1467788).

Almost surely, 2^20796225 is an apocalyptic number.

20796225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20796225 is a deficient number, since it is larger than the sum of its proper divisors (14430687).

20796225 is a wasteful number, since it uses less digits than its factorization.

20796225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6817 (or 6812 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20796225 is about 4560.2878198640. The cubic root of 20796225 is about 274.9971349564.

The spelling of 20796225 in words is "twenty million, seven hundred ninety-six thousand, two hundred twenty-five".