20255012 has 6 divisors (see below), whose sum is σ = 35446278. Its totient is φ = 10127504.

The previous prime is 20255009. The next prime is 20255017. The reversal of 20255012 is 21055202.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 7695076 = 3544^2 + 2774^2 .

It is a super-2 number, since 2×20255012² = 820531022240288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20255017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2531873 + ... + 2531880.

It is an arithmetic number, because the mean of its divisors is an integer number (5907713).

Almost surely, 2^20255012 is an apocalyptic number.

It is an amenable number.

20255012 is a deficient number, since it is larger than the sum of its proper divisors (15191266).

20255012 is a wasteful number, since it uses less digits than its factorization.

20255012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063757 (or 5063755 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 20255012 is about 4500.5568544348. The cubic root of 20255012 is about 272.5905744980.

The spelling of 20255012 in words is "twenty million, two hundred fifty-five thousand, twelve".