20224552 has 8 divisors (see below), whose sum is σ = 37921050. Its totient is φ = 10112272.

The previous prime is 20224549. The next prime is 20224559. The reversal of 20224552 is 25542202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17422276 + 2802276 = 4174^2 + 1674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20224559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264027 + ... + 1264042.

Almost surely, 2^20224552 is an apocalyptic number.

It is an amenable number.

20224552 is a deficient number, since it is larger than the sum of its proper divisors (17696498).

20224552 is a wasteful number, since it uses less digits than its factorization.

20224552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528075 (or 2528071 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20224552 is about 4497.1715555447. The cubic root of 20224552 is about 272.4538630753.

Adding to 20224552 its reverse (25542202), we get a palindrome (45766754).

The spelling of 20224552 in words is "twenty million, two hundred twenty-four thousand, five hundred fifty-two".