253320133 has 24 divisors (see below), whose sum is σ = 289729440. Its totient is φ = 219629760.

The previous prime is 253320131. The next prime is 253320149. The reversal of 253320133 is 331023352.

It is a happy number.

It is not a de Polignac number, because 253320133 - 2¹ = 253320131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253320131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1285791 + ... + 1285987.

It is an arithmetic number, because the mean of its divisors is an integer number (12072060).

Almost surely, 2^253320133 is an apocalyptic number.

It is an amenable number.

253320133 is a deficient number, since it is larger than the sum of its proper divisors (36409307).

253320133 is a wasteful number, since it uses less digits than its factorization.

253320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 253320133 is about 15916.0338338419. The cubic root of 253320133 is about 632.7370068999.

Adding to 253320133 its reverse (331023352), we get a palindrome (584343485).

The spelling of 253320133 in words is "two hundred fifty-three million, three hundred twenty thousand, one hundred thirty-three".