253030249 has 8 divisors (see below), whose sum is σ = 261934920. Its totient is φ = 244137600.

The previous prime is 253030243. The next prime is 253030259. The reversal of 253030249 is 942030352.

It can be written as a sum of positive squares in 4 ways, for example, as 4652649 + 248377600 = 2157^2 + 15760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253030249 - 2³ = 253030241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253030241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71379 + ... + 74839.

It is an arithmetic number, because the mean of its divisors is an integer number (32741865).

Almost surely, 2^253030249 is an apocalyptic number.

253030249 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

253030249 is a deficient number, since it is larger than the sum of its proper divisors (8904671).

253030249 is a wasteful number, since it uses less digits than its factorization.

253030249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 253030249 is about 15906.9245613349. The cubic root of 253030249 is about 632.4955596557.

The spelling of 253030249 in words is "two hundred fifty-three million, thirty thousand, two hundred forty-nine".