20225552 has 20 divisors (see below), whose sum is σ = 39303660. Its totient is φ = 10082688.

The previous prime is 20225539. The next prime is 20225561. The reversal of 20225552 is 25552202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16289296 + 3936256 = 4036^2 + 1984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4274 + ... + 7662.

It is an arithmetic number, because the mean of its divisors is an integer number (1965183).

Almost surely, 2^20225552 is an apocalyptic number.

It is an amenable number.

20225552 is a deficient number, since it is larger than the sum of its proper divisors (19078108).

20225552 is a wasteful number, since it uses less digits than its factorization.

20225552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3764 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 20225552 is about 4497.2827351635. The cubic root of 20225552 is about 272.4583534817.

Adding to 20225552 its reverse (25552202), we get a palindrome (45777754).

The spelling of 20225552 in words is "twenty million, two hundred twenty-five thousand, five hundred fifty-two".