253233642 has 32 divisors (see below), whose sum is σ = 515750400. Its totient is φ = 82874880.

The previous prime is 253233601. The next prime is 253233647. The reversal of 253233642 is 246332352.

It is not an unprimeable number, because it can be changed into a prime (253233647) 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 15 ways as a sum of consecutive naturals, for example, 104359 + ... + 106757.

It is an arithmetic number, because the mean of its divisors is an integer number (16117200).

Almost surely, 2^253233642 is an apocalyptic number.

253233642 is an abundant number, since it is smaller than the sum of its proper divisors (262516758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253233642 is a wasteful number, since it uses less digits than its factorization.

253233642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718.

The product of its digits is 25920, while the sum is 30.

The square root of 253233642 is about 15913.3164990834. The cubic root of 253233642 is about 632.6649869814.

Adding to 253233642 its reverse (246332352), we get a palindrome (499565994).

The spelling of 253233642 in words is "two hundred fifty-three million, two hundred thirty-three thousand, six hundred forty-two".