253220330 has 48 divisors (see below), whose sum is σ = 509634720. Its totient is φ = 90493920.

The previous prime is 253220329. The next prime is 253220371. The reversal of 253220330 is 33022352.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69617 + ... + 73163.

It is an arithmetic number, because the mean of its divisors is an integer number (10617390).

Almost surely, 2^253220330 is an apocalyptic number.

253220330 is an abundant number, since it is smaller than the sum of its proper divisors (256414390).

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

253220330 is a wasteful number, since it uses less digits than its factorization.

253220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 253220330 is about 15912.8982275386. The cubic root of 253220330 is about 632.6539007979.

Adding to 253220330 its reverse (33022352), we get a palindrome (286242682).

The spelling of 253220330 in words is "two hundred fifty-three million, two hundred twenty thousand, three hundred thirty".