20255552 has 14 divisors (see below), whose sum is σ = 40194738. Its totient is φ = 10127744.

The previous prime is 20255549. The next prime is 20255563. The reversal of 20255552 is 25555202.

It can be written as a sum of positive squares in only one way, i.e., 10916416 + 9339136 = 3304^2 + 3056^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158183 + ... + 158310.

Almost surely, 2^20255552 is an apocalyptic number.

It is an amenable number.

20255552 is a deficient number, since it is larger than the sum of its proper divisors (19939186).

20255552 is an equidigital number, since it uses as much as digits as its factorization.

20255552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316505 (or 316495 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 20255552 is about 4500.6168466111. The cubic root of 20255552 is about 272.5929969042.

The spelling of 20255552 in words is "twenty million, two hundred fifty-five thousand, five hundred fifty-two".