253220224 has 32 divisors (see below), whose sum is σ = 505236600. Its totient is φ = 126415872.

The previous prime is 253220213. The next prime is 253220237. The reversal of 253220224 is 422022352.

It is a happy number.

253220224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×253220224² = 128240963685220352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253220195 and 253220204.

It is a congruent number.

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, 120172 + ... + 122260.

Almost surely, 2^253220224 is an apocalyptic number.

It is an amenable number.

253220224 is a deficient number, since it is larger than the sum of its proper divisors (252016376).

253220224 is an equidigital number, since it uses as much as digits as its factorization.

253220224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050 (or 3038 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 253220224 is about 15912.8948969067. The cubic root of 253220224 is about 632.6538125199.

Adding to 253220224 its reverse (422022352), we get a palindrome (675242576).

The spelling of 253220224 in words is "two hundred fifty-three million, two hundred twenty thousand, two hundred twenty-four".