20265650 has 24 divisors (see below), whose sum is σ = 38076804. Its totient is φ = 8024000.

The previous prime is 20265629. The next prime is 20265667. The reversal of 20265650 is 5656202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 16459249 + 3806401 = 4057^2 + 1951^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3044 + ... + 7056.

Almost surely, 2^20265650 is an apocalyptic number.

20265650 is a deficient number, since it is larger than the sum of its proper divisors (17811154).

20265650 is a wasteful number, since it uses less digits than its factorization.

20265650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4121 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 20265650 is about 4501.7385530481. The cubic root of 20265650 is about 272.6382879728.

The spelling of 20265650 in words is "twenty million, two hundred sixty-five thousand, six hundred fifty".