253305612 has 72 divisors (see below), whose sum is σ = 733824000. Its totient is φ = 72170208.

The previous prime is 253305599. The next prime is 253305623. The reversal of 253305612 is 216503352.

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, 104389 + ... + 106787.

It is an arithmetic number, because the mean of its divisors is an integer number (10192000).

Almost surely, 2^253305612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253305612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366912000).

253305612 is an abundant number, since it is smaller than the sum of its proper divisors (480518388).

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

253305612 is a wasteful number, since it uses less digits than its factorization.

253305612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 253305612 is about 15915.5776520992. The cubic root of 253305612 is about 632.7249165993.

Adding to 253305612 its reverse (216503352), we get a palindrome (469808964).

The spelling of 253305612 in words is "two hundred fifty-three million, three hundred five thousand, six hundred twelve".