253233645 has 32 divisors (see below), whose sum is σ = 465039360. Its totient is φ = 115268160.

The previous prime is 253233601. The next prime is 253233647. The reversal of 253233645 is 546332352.

253233645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253233645 - 2⁷ = 253233517 is a prime.

It is a super-3 number, since 3×253233645³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253233647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20050 + ... + 30140.

It is an arithmetic number, because the mean of its divisors is an integer number (14532480).

Almost surely, 2^253233645 is an apocalyptic number.

It is an amenable number.

253233645 is a deficient number, since it is larger than the sum of its proper divisors (211805715).

253233645 is a wasteful number, since it uses less digits than its factorization.

253233645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10345.

The product of its digits is 64800, while the sum is 33.

The square root of 253233645 is about 15913.3165933441. The cubic root of 253233645 is about 632.6649894797.

Adding to 253233645 its reverse (546332352), we get a palindrome (799565997).

The spelling of 253233645 in words is "two hundred fifty-three million, two hundred thirty-three thousand, six hundred forty-five".