20256652 has 24 divisors (see below), whose sum is σ = 39838176. Its totient is φ = 8942208.

The previous prime is 20256637. The next prime is 20256659. The reversal of 20256652 is 25665202.

It is a self number, because there is not a number n which added to its sum of digits gives 20256652.

It is not an unprimeable number, because it can be changed into a prime (20256659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7273 + ... + 9664.

It is an arithmetic number, because the mean of its divisors is an integer number (1659924).

Almost surely, 2^20256652 is an apocalyptic number.

It is an amenable number.

20256652 is a deficient number, since it is larger than the sum of its proper divisors (19581524).

20256652 is a wasteful number, since it uses less digits than its factorization.

20256652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16977 (or 16975 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 20256652 is about 4500.7390504227. The cubic root of 20256652 is about 272.5979313023.

The spelling of 20256652 in words is "twenty million, two hundred fifty-six thousand, six hundred fifty-two".