1253324251 has 4 divisors (see below), whose sum is σ = 1265733504. Its totient is φ = 1240915000.

The previous prime is 1253324213. The next prime is 1253324299. The reversal of 1253324251 is 1524233521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1253324251 - 2⁹ = 1253323739 is a prime.

It is a super-2 number, since 2×1253324251² = 3141643356289422002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253304251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6204475 + ... + 6204676.

It is an arithmetic number, because the mean of its divisors is an integer number (316433376).

Almost surely, 2^1253324251 is an apocalyptic number.

1253324251 is a deficient number, since it is larger than the sum of its proper divisors (12409253).

1253324251 is a wasteful number, since it uses less digits than its factorization.

1253324251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12409252.

The product of its digits is 7200, while the sum is 28.

The square root of 1253324251 is about 35402.3198533655. The cubic root of 1253324251 is about 1078.1714173179.

Adding to 1253324251 its reverse (1524233521), we get a palindrome (2777557772).

The spelling of 1253324251 in words is "one billion, two hundred fifty-three million, three hundred twenty-four thousand, two hundred fifty-one".