1253520224 has 48 divisors (see below), whose sum is σ = 2757915216. Its totient is φ = 555878400.

The previous prime is 1253520173. The next prime is 1253520227. The reversal of 1253520224 is 4220253521.

It is a junction number, because it is equal to n+sod(n) for n = 1253520193 and 1253520202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253520227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28997 + ... + 57860.

It is an arithmetic number, because the mean of its divisors is an integer number (57456567).

Almost surely, 2^1253520224 is an apocalyptic number.

It is an amenable number.

1253520224 is an abundant number, since it is smaller than the sum of its proper divisors (1504394992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253520224 is a wasteful number, since it uses less digits than its factorization.

1253520224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86919 (or 86911 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1253520224 is about 35405.0875440240. The cubic root of 1253520224 is about 1078.2276096069.

Adding to 1253520224 its reverse (4220253521), we get a palindrome (5473773745).

The spelling of 1253520224 in words is "one billion, two hundred fifty-three million, five hundred twenty thousand, two hundred twenty-four".