253024445 has 8 divisors (see below), whose sum is σ = 304084536. Its totient is φ = 202116096.

The previous prime is 253024441. The next prime is 253024517. The reversal of 253024445 is 544420352.

It can be written as a sum of positive squares in 4 ways, for example, as 8602489 + 244421956 = 2933^2 + 15634^2 .

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 253024445 - 2² = 253024441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253024441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34232 + ... + 40961.

It is an arithmetic number, because the mean of its divisors is an integer number (38010567).

Almost surely, 2^253024445 is an apocalyptic number.

It is an amenable number.

253024445 is a deficient number, since it is larger than the sum of its proper divisors (51060091).

253024445 is an equidigital number, since it uses as much as digits as its factorization.

253024445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75871.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 253024445 is about 15906.7421240177. The cubic root of 253024445 is about 632.4907235643.

Adding to 253024445 its reverse (544420352), we get a palindrome (797444797).

The spelling of 253024445 in words is "two hundred fifty-three million, twenty-four thousand, four hundred forty-five".