253312450 has 24 divisors (see below), whose sum is σ = 473571252. Its totient is φ = 100806720.

The previous prime is 253312421. The next prime is 253312459. The reversal of 253312450 is 54213352.

It can be written as a sum of positive squares in 6 ways, for example, as 182601169 + 70711281 = 13513^2 + 8409^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (253312459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3009 + ... + 22708.

Almost surely, 2^253312450 is an apocalyptic number.

253312450 is a deficient number, since it is larger than the sum of its proper divisors (220258802).

253312450 is a wasteful number, since it uses less digits than its factorization.

253312450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25926 (or 25921 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 253312450 is about 15915.7924716302. The cubic root of 253312450 is about 632.7306100303.

The spelling of 253312450 in words is "two hundred fifty-three million, three hundred twelve thousand, four hundred fifty".