1253511233 has 16 divisors (see below), whose sum is σ = 1359038016. Its totient is φ = 1149318720.

The previous prime is 1253511221. The next prime is 1253511253. The reversal of 1253511233 is 3321153521.

It is a cyclic number.

It is not a de Polignac number, because 1253511233 - 2²⁰ = 1252462657 is a prime.

It is a super-2 number, since 2×1253511233² = 3142580822514360578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1253511253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2250191 + ... + 2250747.

It is an arithmetic number, because the mean of its divisors is an integer number (84939876).

Almost surely, 2^1253511233 is an apocalyptic number.

1253511233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1253511233 is a deficient number, since it is larger than the sum of its proper divisors (105526783).

1253511233 is a wasteful number, since it uses less digits than its factorization.

1253511233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424.

The product of its digits is 2700, while the sum is 26.

The square root of 1253511233 is about 35404.9605705189. The cubic root of 1253511233 is about 1078.2250317020.

Adding to 1253511233 its reverse (3321153521), we get a palindrome (4574664754).

The spelling of 1253511233 in words is "one billion, two hundred fifty-three million, five hundred eleven thousand, two hundred thirty-three".