253504105 has 8 divisors (see below), whose sum is σ = 309192264. Its totient is φ = 199478400.

The previous prime is 253504103. The next prime is 253504117. The reversal of 253504105 is 501405352.

253504105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4116841 + 249387264 = 2029^2 + 15792^2 .

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

It is not a de Polignac number, because 253504105 - 2¹ = 253504103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253504105.

It is not an unprimeable number, because it can be changed into a prime (253504103) 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, 415276 + ... + 415885.

It is an arithmetic number, because the mean of its divisors is an integer number (38649033).

Almost surely, 2^253504105 is an apocalyptic number.

It is an amenable number.

253504105 is a deficient number, since it is larger than the sum of its proper divisors (55688159).

253504105 is an equidigital number, since it uses as much as digits as its factorization.

253504105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831227.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 253504105 is about 15921.8122398174. The cubic root of 253504105 is about 632.8901434640.

Adding to 253504105 its reverse (501405352), we get a palindrome (754909457).

The spelling of 253504105 in words is "two hundred fifty-three million, five hundred four thousand, one hundred five".