1224025253 has 4 divisors (see below), whose sum is σ = 1335300288. Its totient is φ = 1112750220.

The previous prime is 1224025199. The next prime is 1224025259. The reversal of 1224025253 is 3525204221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1224025253 - 2¹⁰ = 1224024229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224025259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55637501 + ... + 55637522.

It is an arithmetic number, because the mean of its divisors is an integer number (333825072).

Almost surely, 2^1224025253 is an apocalyptic number.

It is an amenable number.

1224025253 is a deficient number, since it is larger than the sum of its proper divisors (111275035).

1224025253 is a wasteful number, since it uses less digits than its factorization.

1224025253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111275034.

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

The square root of 1224025253 is about 34986.0722716912. The cubic root of 1224025253 is about 1069.7036046895.

Adding to 1224025253 its reverse (3525204221), we get a palindrome (4749229474).

The spelling of 1224025253 in words is "one billion, two hundred twenty-four million, twenty-five thousand, two hundred fifty-three".