20662552 has 16 divisors (see below), whose sum is σ = 39143160. Its totient is φ = 10224384.

The previous prime is 20662549. The next prime is 20662561. The reversal of 20662552 is 25526602.

It is a self number, because there is not a number n which added to its sum of digits gives 20662552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12538 + ... + 14089.

Almost surely, 2^20662552 is an apocalyptic number.

It is an amenable number.

20662552 is a deficient number, since it is larger than the sum of its proper divisors (18480608).

20662552 is a wasteful number, since it uses less digits than its factorization.

20662552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26730 (or 26726 counting only the distinct ones).

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

The square root of 20662552 is about 4545.6079901373. The cubic root of 20662552 is about 274.4066634449.

The spelling of 20662552 in words is "twenty million, six hundred sixty-two thousand, five hundred fifty-two".