253020445 has 8 divisors (see below), whose sum is σ = 304236000. Its totient is φ = 202008720.

The previous prime is 253020433. The next prime is 253020451. The reversal of 253020445 is 544020352.

253020445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 253020445 - 2¹¹ = 253018397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48211 + ... + 53200.

It is an arithmetic number, because the mean of its divisors is an integer number (38029500).

Almost surely, 2^253020445 is an apocalyptic number.

It is an amenable number.

253020445 is a deficient number, since it is larger than the sum of its proper divisors (51215555).

253020445 is a wasteful number, since it uses less digits than its factorization.

253020445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101915.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 253020445 is about 15906.6163906722. The cubic root of 253020445 is about 632.4873905843.

Adding to 253020445 its reverse (544020352), we get a palindrome (797040797).

The spelling of 253020445 in words is "two hundred fifty-three million, twenty thousand, four hundred forty-five".