253500505 has 16 divisors (see below), whose sum is σ = 313816464. Its totient is φ = 196439040.

The previous prime is 253500491. The next prime is 253500539. The reversal of 253500505 is 505005352.

253500505 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 8 ways, for example, as 8139609 + 245360896 = 2853^2 + 15664^2 .

It is not a de Polignac number, because 253500505 - 2⁵ = 253500473 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 253500505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40165 + ... + 46045.

It is an arithmetic number, because the mean of its divisors is an integer number (19613529).

Almost surely, 2^253500505 is an apocalyptic number.

It is an amenable number.

253500505 is a deficient number, since it is larger than the sum of its proper divisors (60315959).

253500505 is a wasteful number, since it uses less digits than its factorization.

253500505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 253500505 is about 15921.6991869587. The cubic root of 253500505 is about 632.8871475686.

Adding to 253500505 its reverse (505005352), we get a palindrome (758505857).

The spelling of 253500505 in words is "two hundred fifty-three million, five hundred thousand, five hundred five".