253988845 has 8 divisors (see below), whose sum is σ = 332494560. Its totient is φ = 184719120.

The previous prime is 253988837. The next prime is 253988849. The reversal of 253988845 is 548889352.

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

It is not a de Polignac number, because 253988845 - 2³ = 253988837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253988792 and 253988801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253988849) 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, 2308935 + ... + 2309044.

It is an arithmetic number, because the mean of its divisors is an integer number (41561820).

Almost surely, 2^253988845 is an apocalyptic number.

It is an amenable number.

253988845 is a deficient number, since it is larger than the sum of its proper divisors (78505715).

253988845 is a wasteful number, since it uses less digits than its factorization.

253988845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617995.

The product of its digits is 2764800, while the sum is 52.

The square root of 253988845 is about 15937.0274831915. The cubic root of 253988845 is about 633.2932820163.

It can be divided in two parts, 25398 and 8845, that added together give a palindrome (34243).

The spelling of 253988845 in words is "two hundred fifty-three million, nine hundred eighty-eight thousand, eight hundred forty-five".