20253224 has 8 divisors (see below), whose sum is σ = 37974810. Its totient is φ = 10126608.

The previous prime is 20253209. The next prime is 20253241. The reversal of 20253224 is 42235202.

It can be written as a sum of positive squares in only one way, i.e., 13912900 + 6340324 = 3730^2 + 2518^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20253196 and 20253205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265819 + ... + 1265834.

Almost surely, 2^20253224 is an apocalyptic number.

It is an amenable number.

20253224 is a deficient number, since it is larger than the sum of its proper divisors (17721586).

20253224 is a wasteful number, since it uses less digits than its factorization.

20253224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531659 (or 2531655 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20253224 is about 4500.3582079652. The cubic root of 20253224 is about 272.5825533345.

Adding to 20253224 its reverse (42235202), we get a palindrome (62488426).

The spelling of 20253224 in words is "twenty million, two hundred fifty-three thousand, two hundred twenty-four".