253561233 has 8 divisors (see below), whose sum is σ = 338975200. Its totient is φ = 168594048.

The previous prime is 253561219. The next prime is 253561237. The reversal of 253561233 is 332165352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253561233 - 2⁸ = 253560977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253561233.

It is not an unprimeable number, because it can be changed into a prime (253561237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110368 + ... + 112641.

It is an arithmetic number, because the mean of its divisors is an integer number (42371900).

Almost surely, 2^253561233 is an apocalyptic number.

It is an amenable number.

253561233 is a deficient number, since it is larger than the sum of its proper divisors (85413967).

253561233 is a wasteful number, since it uses less digits than its factorization.

253561233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223391.

The product of its digits is 16200, while the sum is 30.

The square root of 253561233 is about 15923.6061556420. The cubic root of 253561233 is about 632.9376811985.

The spelling of 253561233 in words is "two hundred fifty-three million, five hundred sixty-one thousand, two hundred thirty-three".